your situation sounds very familiar - I have definitely been in the same boat as you. I had multiple years of sobriety in the past, but never addressed my underlying anxiety & I believe this contributed to my multi-year relapse.
I would suggest you did what I did when I got sober this time & talk to your Doctor. mine referred me for Cognitive therapy (CBT) & a short course of six sessions made a major impact on my thinking & view of the world, with a consequent considerable reduction in my anxiety. there is also non-addictive anxiety medication available, if your doctor feels it would be beneficial.
I think the effect of anxiety is poorly understood by many. most people are anxious in some circumstances but are mostly able to shrug this off. constant, gnawing anxiety is a different beast & can be debilitating, so I hope you'll look into getting yourself some help.