Anxiety destroyed my 20s. It kept me home-bound. I rarely went out and would have attacks at the grocery store all of the time. Early on I hoped that things would come to a head and that I would eventually be immune to it, and stronger for it. But that never happened. I was afraid to seek help because I assumed they'd put me on meds that would dull my thinking. Looking back, that probably would have been fine. At every turn anxiety held me back. A stupider but freer me would have been welcome.
After a lot of self-analysis and experimentation I discovered that about 70% of the problem was the Pepsi I was slugging down every day. For my body, sugar and caffeine together are like crack. I switched to diet and dropped about half of my daily anxiety in a few months. I eventually cut the caffeine out altogether. Daily anxiety almost entirely dropped, with occasional spikes for stressful situations. A friend told me to look into choline. I'm not a supplements guy, but it turns out eggs have plenty so I started eating eggs every morning. I also started running which has had a huge impact on my mood. After a while I rarely had anxiety. In fact most of the anxiety was from worrying that I was going to have an anxiety attack. I'm not cured - I don't like certain situations and those can still bring out an attack. The good news is that it's now at a point where I can fight back and "be brave", which I always though would fix it but never did. That actually works most of the time now. That was just impossible in the past.
I used to think that caffeine was making me smarter. It was definitely giving me bursts of ideas, but ultimately it didn't give me anything I wasn't going to have already. I was abusing a drug, not thoughtfully taking a medication.
I basically had to become enraged at how my life was going in order to do something about it.
The bottom line is to never stop trying to solve it. Try the meds, exercise, diet, meditation, electroshock, whatever. Try everything until you figure it out.