Confusion

[DjMidgetMan]

I hear that some of you it took you months to have your first oobe. Im 13 years old, and ive been reading about it... after 2 weeks of practice i had my first oobe... Before that i commonly lucid dreamed with no problem(i could naturally do it, no reading bout it).... Im trying to have another obe, but its been kind of tough... I almost had an oobe last night... Listen up...
    I lied down on my bed and turned off the lights... I tensed my muscles one by one and relaxing them... I started pulling energy with my mental hands from my feet through my thighs and up... By the way, is it normal to feel like your legs arent there for a split second when your imaginary hands stroke them??? Well anyway, let me continue... So then I did that for like a couple minutes, and then I stopped... I then imagined myself in front of body and kept trying to make myself believe it...I felt like I was seperating for a moment but I couldnt get out... My astral body felt loose and my hands felt like they were a foot above their normal position... I think at that point I lost my concentration... I felt like that i couldnt control anything.... I lied there for 15 minutes attempting and attempting trying to regain concentration. At one point after the 15 minutes, I just relaxed... And then made myself believe I was rising.... I felt my astral body rising above my normal one, and then rising and then rising.... I started feeling vibrations and I specifically remember feeling a opening like feeling in my thigh and a pulse running through it... But then at one point I couldnt go any further... and i lost concentration... I tried but instead I gave up, and I went to sleep...
       Now my question is, if this happens again, and i feel like i cant make it any further, is there a way I can continue coming out without losing my concentration??? I think the problem is that I lose my mental power at one point, and my concentration dies... Well dont blame me, Im only 13...