somebody help me please
I no longer know if I'm losing due to bad matchups
bad decisions
or bad luck

I have this review here
https://files.catbox.moe/46nnjc.mp4

I would appreciate if someone could watch it and tell me if I'm making SEVERE GLARING FUNDAMENTAL MISTAKES that are causing me to lose

cause I'm really losing confidence on myself especially since I'm playing a tier 0 deck