The angry phase of the breakup

I’m in the angry phase of my breakup. It’s been 2 mos. At first I was fine, then I was sad and felt like I made a mistake and begged for him back. He said he’d needed time to think 3weeks to a month went by before I texted him again and he said he’d been procrastinating telling me he didn’t want to get back together. Now I’m in the angry phase I feel like I wasted 5 years of my life waiting for him to get his shit together. I’m trying to keep myself from cussing him out because Ik that probably wouldn’t make me feel better & idk if next week I’ll feel sad again.