I'm early-30s and found out this week that the tendonitis in my foot that the doctor swore would clear up "in a month or two" with ice, ibuprofen, and stretchin

I'm early-30s and found out this week that the tendonitis in my foot that the doctor swore would clear up "in a month or two" with ice, ibuprofen, and stretching, is actually arthritis. My hair's getting a little thin too. Feeling like I'm past my peak really isn't sitting well with me