It’s getting bad again...

I’ve dealt with anxiety for as long as I can remember. I was having full-blown panic attacks at 6-years-old. It actually went untreated for so long because the doctors didn’t realize they were panic attacks until I was 14, that my GAD (generalized anxiety disorder) turned into panic disorder & agoraphobia. I went through counseling four times my whole life (I’m 21 now), have tried just about every anti-anxiety medication out there besides Xanax (that’s unfortunately my next & last option).... I’ve been doing so well & have been off my meds for over a year now! But things are getting super shitty again & my doctor sent a referral for a therapist/counselor. I feel like a failure because it’s at the point where I need help again. I’m just so annoyed with myself. What happened? Why all of the sudden is my anxiety getting worse?