Keep living life. Life experiences change you.
I was a very sensitive person once. Someone asked me my name and i started crying (i was about 3-4). Even well into my teens. With time, with a lot of insults hurled at me, with a lot of insults i hurled at others, one day i realised i have now the mindset of a construction worker who doesn't give a shit no matter what is said to him.
i don't really understand what thick skin has to do with being degenerate?