I want to strangle my kid. (No, not really strangle.. but a payback is in order!)

LOL oh man that sounds too familiar, my dad had sort-of the same kind of attitude until I finally gave in and started anxiety meds when I was 20 in college because I literally could not function anymore. Kept telling myself "it's all in my head" and then within a day of starting sertraline I had a revelation... "THIS is what it feels like to be "normal"!!! I still hate being dependent on meds though and hope someday I can drop them. Serious anxiety runs in my mom's family and I definitely got it bad. Heck my grandfather had it terrible and in his time it wasn't a "real thing" so he turned to drinking booze and smoking cigarettes, a LOT.

That's commendable you took the hard way and helped him by other means, a lot of parents would be too lazy and just get him on meds right off the bat and send him away for counseling.
If meds is what you need, don't feel ashamed about it.
I had a serous social phobia problem, starting in my early 20's.. and though she doesn't know it, my wife helped me out in that in her way. If I had talked to someone about it, my life would be much different.. maybe better, maybe worse... all I know is I went through a lot of torment, and missed out on a lot of my families happenings during that time... and I knew it at the time, but couldn't deal with it. Meds may have helped me.
Work on yourself as much as you can. If you need help, reach out, as hard as that may be.
Hang in there!