I'm having the exact same problem. I have managed to have some lucid dreams, but only 2 really significant ones. Other than that, not much. I usually wake up around 3:00 am to try and have an OBE, but I usually just end up relaxing myself back to sleep. I think I know what's holding me back though. I allow too much negative energy around me. I asked this question to some people on this board and they confirmed my suspicions. I have to figure out how to change that.
I can help with that also. Like I said, I work in a metaphysical bookshop so a lot of what I do during the day is help people deal with "negative energy problems". Sometimes it come across as "bad luck", sometimes it manifests as "hauntings" (and I say haunting to mean a wide variety of things that have nothing to do with a genuine haunting, but that's what people call it when they come in), other times it presents as a blockage or difficulty with energy related issues.
There are a few easy things you can do.
1) Get a white sage wand or loose leaves and smudge your home, yourself, and especially the space where you do projection work. Smudging is really easy to do, just get the sage, set it on fire and let the smoke go all through the places that you smudge. I like to move the sage in a spiral/circle motion as I move it through my space, making sure to get smoke in every nook and cranny of the room. You can also use just a couple of leaves to smudge yourself and help release any "negative energies" that you have in your energy system.
2) Carry some black crystals/gemstones with you. You can also use some dark brown crystals, like Labradorite or it's higher resonance brother, Spectrolite. My favorite protection stone is Black Tourmaline (Schorl), but you could also use Rainbow Obsidian, Black Onyx, Jet, Black Agate, or any other black crystal you find. There are also a couple of stones that are helpful because of how they effect you and the type of energy your put around yourself. Stones like Amethyst, Citrine, Kyanite, Amazonite, Lapis Lazuli, Celestite, Selenite, Rose Quartz, any other Quartz, etc. can all help you make sure you're not contributing to the negative energy and it can help you recognize and not attract negative energy. These stones have unique metaphysical properties that I recommend looking up because you can get a lot more out of them than just protection.
There is pretty good crystal information at these websites:
www.shimmerlings.comhttp://spiritofisis.org/index_files/info_crystals.htmThere are also quite a few stones that can be helpful in Astral Projection/OBE work. Their properties range from helping conscious projection to protection during projection to remembering the experience when you return. There are also many that are associated with shamanic journeying (which I think is pretty close to Monroe's F10) and other types of "soul-journeying". Some good AP stones are amethyst (put under your pillow while sleeping), Cavansite, Ulexite (really helps with visualization), Zebra Jasper, Bismuth (these are artificially grown in a lab which usually negates their metaphysical properties, but this is one of the few stones that is still considered to be useful after it's been altered, other examples are things like Aqua Aura Quartz or Siberian Blue Quartz), Merlinite (sometimes called dendrite opal, though there is no opal in it), and one of my favorites Mochi Balls/Boji Stones/Shaman's Stones. You can also use stones for psychic development like Lapis Lazuli, Larimar, Azurite, Shattuckite, Chrysocolla, etc. (you may notice a theme here if you see these stones, they're all blue/violet which associates them with the 3rd eye). And since I have mentioned the 3rd Eye, which is discussed here a lot, as long as you learn the color associations of the chakras you can find crystals that are attuned to the chakras. Stones of the same color can help energize and clear Chakras.
Before I move on to the last points, I want to say that my favorite stone is Kyanite and for good reason. Kyanite can cleanse and align all Chakras and Subtle Bodies (Energy Centers and Energy Bodies) with no conscious direction. It can also energize and release blockages with some conscious direction. I bring it up because when you combine it with the N.E.W. energy work it really enhances that practice. Using the Kyanite as my "awareness finger" for some of my exercises has really heightened my sensitivity to subtle energies. It is also one of only a few self-cleansing stones, only it takes negative energy and transmutes it to "positive" energy. (and when I say +/- energy I mean that in a subjective sense. scientifically it's often positively charged things that are harmful, like positively charged ions produced by electronic equipment)
3) Practice surrounding yourself with "white light" regularly. Just visualize being surrounded by white light. Even Monroe uses the exercise. But beyond just yourself you can use that white light to protect your home and other people. You can do larger areas by visualizing a beam of white light coming out of your finger and tracing a boundary around your space.
I want to clarify that when I talk about these negative energies, I don't just mean harmful "spirits" or something. While that can be a legitimate concern, particularly "Astral Hangers-On" or Astral Wildlife/Elementals that latch on to your energy and feed off it (which isn't particularly dangerous, but can be annoying over time, I don't want people to fear these things because you generally have more power), that's not all I'm talking about. I also just mean negative influences, like naysayers or people who make fun of you or put you down for the beliefs/practices you have. Often these people are in our lives because somewhere deep inside we feel the same way and we have attracted these types of people to ourselves. Our environment is a mirror that reflects our shadows (shadow-self; relevant to psychology) back to us.
4) That said, there are types of shamanic journeying and other subconscious work you can do to release these shadow beliefs. I recommend a book called "Healing the Shadow" by Ross Bishop and The Gateway Experience Hemi-Sync set from the Monroe Institue because one of the biggest parts of the set is learning how to heal and charge yourself energetically and make positive changes in your life.
I have to go to class now, but I'm thinking about making more comprehensive list of things you can do to protect/heal yourself soon so keep your eyes open.
Rusty