Here's where you should go:
http://www.astro.com/cgi/ade.cgi?ract=ahor.cgi&&cid=jiqfilevGH6Uw-u1025781770
Just fill out all the information and it will give you as much detail as you need. The sun sign is far from the entire story. Of equal importance are the moon sign and rising sign.
It is true that you are good at starting things as an Aries. Have you considered finding people to help you with the follow-through? You don't need to balance this entirely within yourself. There are lots of people who are good at doing the middle step who just need a kick in the butt and a good idea to get started. Other people are good at taking a developed idea and completing it. The hardest part is the one you are good at. You are a natural leader. That is what you should do.
I am of the zodiac sign, the Ram. So, I am a good igniter for things, such as starting up projects, helping people up to their feet and always taking on vigorous challenges. However, that is where it sucks for me. Like what the description of my zodiac says, I do not persevere in the long run of things. I cannot mantain a routine to accomplish long term goals. Since that is failure, that diminishes my pride, which all Rams don't want to happen to them. If that happens, they become destructive. Although, I have a theory of how to change all of that. However, I might not be right... but it is a shot.
For instance, what if I were to try to gather energy from Capricorn, from the planet Saturn, so that I can keep to a routine to finish a strength training goal? If that can work, please tell me how I can focus energy from those planets, for I want to accomplish my goals.
If all of this is not congruent, please reply with your confusion so that I may correct myself.