Question About Atrial Fibrillation?

About 2 years ago i was diagnosed with A-Fib i had 2 Episodes total. I am seeing a Doctor every year for check in's i have Pvc's and Atrial Flutters almost everyday after many EKG's my Doctor seems to think there is no need for worry. My Doctor seems to be content with keeping me on beta-blockers and having me live a lethargic life style. I am now 22 years old and i am not living i am just functioning. what i wanna know is should i seek a new Doctor because i want to get rib of my A-fib i want to be back to normal again. my a-fib seems to Act uo at higher heart rates. it's funny because i have always been an active person never had a problem with my heart then one day BOOM i am in the icu with AFib and i was never give a reason as to why or how something like this can happen all of the sudden. I am 22 year old man with HBP off and on i am just pissed that i got blind sided by this. everyone i talk to seems to say i am to young to have A-fib.