I'm not sure if you're saved or not but your spirit grieves over the condition of the world more so the average human being. I feel that the Lord is dealing with you on some level having come from a family where many members had dedicated their entire lives to the Christian cause. Have you tried fasting and prayer?--it is probably good that you're relationship did break up as you and your boyfriend were probably unequally yoked.
Try to look at it as a positive thing. God always moves out the bad in our lives to make room for the good that he has for us.
Maybe the intent is pray for others. When you take to God in prayer, and leave it there with Him--the weight will come off you. However, God will reveal to you if He needs you to do more.
I'll be praying for you as you embark on this quest.