Still an emotional roller coaster after 6 months

My relationship ended six months ago after ten years together. We have one child. I can honestly say it broke me. It’s the hardest thing I’ve ever endured, worse than my dad dying in 2020 right before the pandemic hit. It’s been an emotional rollercoaster, cycling through anger, resentment, pessimism, optimism, hope, regret, guilt, etc.— weekly, sometimes daily. AND IT HASN’T STOPPED. When does it get easier? When does the emotional rollercoaster end? I’m losing it and I’m so lonely.