It strikes me you've reached the stage where you're thinking about the kind of guitarist you want to be, which is cool....it takes a lot of playing out to audiences before you feel completely comfortable with who you are and how you communicate. I still havent reached this feeling of self-awareness yet, but hell I'm only 19.
The last band I played in were very much set on being the audiences band....we talked about playing things the audience would like more than the music we listened to passionately. We wrote some of our own stuff, not very original or inspired but it worked, and the audience would dance around and have a good time. I still get a good feeling when my audience is enjoying themselves rather than just being impressed and standing still in awe. I would never want to play to a room full of musicians who only came to judge my playing from a musicians point of view.
Stage presence can be aquired many different ways. Goin' wild on stage is one way I've tried many times, as when I played to my friends they liked to see me bring out the excessive and wild part of my personality. I've jumped about with the guitar an played it behind my back not worrying about how good it sounds, I've worn Pokemon T-shirts on stage while playing, and cowboy hats and western shirts like SRV, I've emulated Slash a bit by smoking cigarettes during solos, and yes I've played drunk. All that seems kinda childish when I look back on it but people loved it when I made a fool of myself and I felt I had connected with my audience in a way.
Nowadays I'm more inclined to the kind of playing where there isnt so much 'goin' wild' as there is staying cool and calm and letting the guitar talk.....a stage-style I previously thought quite boring. As you grow up you will find your stage work will mature and change.
If I play fast I like it to be because I'm expressing myself and not just impressing the musicians, sometimes its hard to draw a line between showing off and communicating. You have to live and learn with that one.
Anyhow, thats my philosophy, hope it wasnt too long.
'There's no such thing as bad weather, there's only the wrong clothes...'