That's a great topic. I'm also sensitive. Usually I assume complements are insincere, but I take criticisms personally. I saw a psychologist on TV say that when an immature person is criticized he/she asks the other person why the criticism is justified. A mature person simply ignores the criticism. I don't know. Probably that isn't a helpful observation.

I saw a Buddhist monk who said that the old saying "learn from your mistakes" is wrong. Most experts say we can learn more from our successes than we can from our mistakes, and focusing on mistakes makes us discouraged and depressed.

For me personally, I have simply gotten older. Criticism hurts less after the umpteenth time.