Break up

Just broke up with my boyfriend of 4 years. I did it because I needed to mostly for religious reasons. I’m struggling. I feel like I’m becoming depressed all over again because this has taken such an emotional toll on me. I have some friends to talk to but they are all in happy relationships and their only advice is it will get better. They have their own issues to deal with and so here I am alone, dealing with my feelings all alone. I can’t talk to my family about it either. So I don’t know what to do. I have devastated him and I have emotionally killed myself.