How to keep on living when Life keeps throwing me stones?

How to keep on living when Life keeps throwing me stones? It's probably not the right sub, but my post keeps getting removed elsewhere because I'm using a new throwaway account and I need to vent and I only have Reddit to turn to. But feel free to remove it if needed. 2017: my dad was diagnosed with cancer. 2018: my dad died. 2019: my grandmother, whom I loved very much, died. 2020: Covid-19 pandemic. 2021: my girlfriend of 9 years just left me. I stutter since childhood and I have a job I hate that I must keep because it pays well and I have debts to pay down. What's next? How am I suppose to keep on?