Xanax 0.25mg long term usage 8yrs

Hi, I struggle with anxiety panic attacks daily. I’ve had them since I was 13 years old. I get very dizzy, lightheaded, heart racing, feel like heart, palpitations, sweaty hands filling out of it can’t think straight and it’s way worse when I go in to places where I feel like I have to run out And sit in the car feel comfortable. I was put on a whole different variety of medication‘s for my anxiety panic attacks. None of them seem to work so they finally put me on Xanax three times a day 0.25 mg I have been using this daily for about 7 to 9 years , and my doctor just Prescribed me, busporine 5mg in the morning and noon and evening I am nervous to take this, specially with the use of Xanax.