The fine folks here have brought up most of the things I would have and yes... all this stuff can indeed be overwhelming AND takes a lot of experimenting/practice to really get a hang of (I'm 5 years in and still learning new things all the time).
HOWEVER... you should post anything you come up with into the Songs forum for extra advice as you grow. Do not wait until you think you have something that will "meet up" to the forum's high standards. You WANT to post the early experiments because these folks will listen and provide advice to get you to where you want faster.
My point is... if you REALLY want to learn how to nail down your sound don't hold back from posting to the Songs forum. There is no pomp, judgement or expectations (aside from some of the occasional ridiculous trolls but if they show up just ignore them). It has many REALLY knowledgable, experienced and friendly folks just ready to help out.
The Songs subforum, IMO, is the crown jewel of this site... and that's saying something because there's a lot of good stuff going on around here.
Good luck and have fun.