Your going thru a heart break, this is the first of many. It's normal to go thru a heart break several times in your lifetime. Each time you go thru it, you grow & mature & learn from past relationships, it's an important part of life that everyone goes thru. I know it hurts really bad right now, but you don't want to deprive your self of loving & caring for other people.
It is worth the risk of getting hurt, for the love of others!!!