This will likely fall on deaf ears, ‘cause this sort of advice didn’t work for me when I was in your position. But please, trust, I have been in your position. I am substantially better off now, but not because I’m unfeeling - because I have found good people to surround myself with and become less shy about sharing my feelings with them. The best apathy you can nurture is the kind where you can accept who you are and what you’re feeling without caring what others think about it.