Will, I know it probably doesn't help but you're not alone.

I am experimenting with "Mindfulness" first times I tried could not do it, mind kept wandering, got headaches, what's that noise, I'm hungry...but now I notice it is getting a little easier and I'm up for trying anything!

I too have this terrible anger, not pretty at all, cannot control it and go from zero to ten in a second.

What helps me is getting out in to nature, me and my dog, that's it and I am so calm.

Don't do the meditation thing though if it's too much right now.

Hope u feel better soon