And if finding a coach is pretty much impossible…? (it is for me)
Going by the 110 Power Clean vid: Yes, stop doing that to yourself. Drop the ego, lower the weight and work on form. I’m surprised your back isn’t dead yet, your stomach muscles must be friggin’ strong.
Now, you’re much stronger than me, so you can ignore my post if you want to. However,
Some pointers from a fellow newbie: Don’t roll the bb back and forth to get momentum, get in correct position. Start slowly and controlled until it passes your knees, then you jump it up which you manage, but keep your tight and (!) get under the bar (!). Something that helped me was dividing it into a deadlift and then hang clean.
This video from Travis Ortmayer also helped me.
Though I’d recommend you tried to get a hold of the videos that comes with Starting Strength.