Not sure where you live but would have thought you would have a local venue that has new talent nights, jam nights whatever. If your any good they may book you as support, main thing would be to gig regularly even if you dont't get paid a lot or at all but just getting popular and your faces known in the local area. One thing I would say is that even if there are similar bands locally doing the same thing make yourselves stand out by your name, your stage show, how loud you play etc.
Later on if you're any good produce your own cd and sell them when you gig or give them away, have a basic website, flypost etc etc.
Main thing I would say at this stage is to rehearse loads, get tight and then approach your local venue. Good luck.
p.s. what sort of music do you play.