It is best to just find some guys to jam around with and in any case it could help you improve your playing and maybe you will find someone who writes music and will teach you their ways.
I tell people with this, if you get together with a few guys and jam. Chances are you won't need to read music. Just play something that sounds awesome to you and maybe the guy playing drums will come up with a beat and the bassist will start making up something. If you have a second guitarist maybe he will start playing along. Don't be afraid to put yourself on the chopping block, if you wanna play you just play.