I have a folder of works in progress. Of the unfinished things, some I actually resume and complete, while others are left alone, maybe never to be completed. A lot of it is a side effect of me experimenting with different brushes, colors, or subjects. I also have a folder of text files with different ideas, some of them are really vague, some of them are really specific.
I try not to worry to much about realizing every single idea. Some ideas might be cool, some might be lame. I might have an idea that, in the moment, sounds like a really good one. But then if I write it down and look at it a week or a month later, I realize that it wasn't really as cool as I thought (the opposite can happen too). Maybe I'll rework it, maybe I'll just throw it away. It's not a big deal either way; I'll have more ideas later.
>I have a txt that I keep everthing from random stuff I want to draw to full blown autistic webcomics. As of yet I'm not good enough for any of them.
When will you be good enough for any of them? Maybe it's a better idea to draw whatever you want to right now, and use it as practice. If you tell yourself "I'm not going to draw this until I'm good enough" you might not end up drawing it for a long time. I don't think there's anything wrong with a "dream" idea, but ask yourself: is this really the best idea you're ever going to have? I doubt it (Not to say it's a bad idea, of course, but better ones will come). Say your start working on your dream idea now. Yeah, you might not be able to deliver the quality that you dreamed of. But you might also end up having a new dream idea, and the experience you got from working on your current idea will only carry over.
Hopefully this wasn't too rambling; I've been drinking.