u/SebMiscera

I've been screaming for two years now in a post-metal band, but I know for certain that my technique is not good at all, it doesn't hurt and I'm fine even after a gig, but I run out of air so fast and it doesn't sound really that good. My breath support is fine in clean singing. I don't know what I'm doing wrong, I scrolled and watched hundreds of videos, read thousands of posts but I can't understand. If I try some exercises either it starts to hurt or I fall back to the same old technique, I can't afford a vocal coach, I need advice.

Edit: Typo