It's not getting any easier

We have been broken up for 5 months and together for 3.5 years. I am at a loss as to what else do to. I'm doing all the right things, but I'm tired. I would appreciate any words of encouragement or optimism. I have hit a low point today, and I really want to reach out to them. I won't though, I have more self respect now, and considering how they treated me, they don't deserve to hear how much I love and miss them. There is an emptiness that I can't fill and I'm hurting.