Learn to play the in instrument. Perfect that instrument and make a name for yourself by playing wherever you think it is possible. Play for different local bands before thinking of taking the bigger steps. If you are a vocalist, then you need to work on your voice.
You should know your area of interest. The genre you play must be in coordination with your interests, otherwise you will not be able to feel good with what you produce. If you enjoy playing pop music and land yourself somewhere in the heavy metal department, then you will definitely feel out of place.
Try playing different genres before opting for the one that you think is your area of interest. Listening to a genre and playing it are two different things. Experiment with yourself and your skills.