Help, please?

I need help. In all manner of ways, but let me just ask for it from one direction first. I need to work out how to protect myself. I have spent a lot of time thinking about things and have come to the conclusion that I am too sensitive and I have no cooking clue about how to fix that. Honestly, I feel rubbed raw by it, like all my nerve endings are exposed and they keep making me really, really sad.

I just want to be one of those people who can turn away from stuff and carry on with life and not feel ripped apart by the cruel things in the world. My heart breaks too easily, and I’m struggling to keep all the little pieces together to keep it beating and pumping blood, and doing the things hearts are supposed to do.

Isn’t there some kind of protective gear I can put on, to feel less?