Stoicism

Stoicism is just a bad coping mechanism 

Change my mind

I'm good at making mistakes. Sometimes I improve, but I never make the same mistake twice.
https://makemake.site

Stoicism focuses on changing only what you can control, which imo is a good coping mechanism.

Wanna be the very best. Building @moxiescout. ゼニゼニ

If by actual stoics you mean the original sources, not all "determinism" is made equally.

"...we can control lots of things in our lives" 
Epictetus agrees.

https://iep.utm.edu/stoicism/ (passage pictured below)
https://bmcr.brynmawr.edu/2007/2007.03.02/ (specifically on understanding how stoics approach determinism)

actual stoics believe in determinism and do not distinguish between external and internal events.

this is cringe because according to stoic logic everything is fate and *it is what it is* which is a really bad thing to say as we can control lots of things in our lives, and our reactions to various events.