Do I have the wrong trumpet embouchure?

I am 17 years old and I play the trumpet. I've been playing since 6th grade and my range is at a F sharp over the staff.. But I doubt that's my range because I can only "hit" the note sometimes and not play the scale up to it feeling comfortable. My embouchure is really weird. I basically keep my lips the way they naturally are.. I have a permanent lip ring on my top lip and when I say permanent I mean it... I had quit playing trumpet from 7th grade to 9th grade and throughout that break I always had that lip ring.. It's EXTREMELY hard to play with little pressure and I struggle with slurring notes or keeping a steady sound. When I hold out a note it starts out okay but after a few seconds my lips just die.. As a trumpet player who's been playing since 6th grade, doesn't this sound off? Shouldnt I be better? Do I need to start over from scratch with another embouchure? I can't thouroughly explain my situation because I am limited to typing it on the internet which is not the same. I would appreciate any sort of advice or bit of intellect from any professional or anybody who knows what they're doing. I am extremely worried because I am about to go to college and be in the Prairie View A&M University Marching Band and I think I need major change.. I really don't know what else to add about my problem but It's really severe. Oh yea another thing I have tried playing a concert F on my trumpet and removing the horn from my lips and I noticed that my lips aren't buzzing.. When I take the horn away from my lips air just comes out of my lips as if I were blowing a candle.. I'm really confused so yea anything will help. Thanks