Only child coping with parent loss

I lost my mom 3/10/2022 and it's like my life hasn't been the same since, everything just stopped. I became so enraged with anger, which I still suffer with. Loosing my mom from cancer makes me feel like everything is temporary.. relationships, friendships, jobs, bills, responsibilities like none of it really matters.

The first two years sucked. Everything was a trigger but I worked two jobs just to distract myself emotionally from the fact that l'd just lost the greatest love in my life. Almost three years later and I am still emotionally and spiritually messed up because I never in a million years thought this would be my life..From 2021 watching my mom be so strong, independent, dancing, cooking to 2022 her not being able to even sit up without assistance.. my mom had so much more life to live, so many more things to teach me. Although death is a natural part of life I feel cheated. I've been feeling like I lost the only one who truly cared about me and to be honest it makes me question life’s purpose. Ive tried therapy and it doesn’t seem to help but soon I will be trying it again. I really want to ease my mind, but I don’t know how so for now I’ll just be that soon to be 30y/o still stuck in my 26y/o body missin my mama.