No offense, but you are bridling this horse in a such a dangerous manner, it's amazing you have not been injured yet. You pin him against a wall, and you 'hold' his head down, as well as rushing to pull his ears through the bridle? This is all clausterphobic for a horse, and he is a saint for allowing you to do this to him. I have witnessed people get their heads whacked really hard because the horse panicked by doing just ONE of these things to their horses let alone all three. It's not mean to be doing this it's just not smart. Just one time of him panicking, and you can land in the hospital with a concussion, or smashed in nose or worse.
Just because he is an older horse doesn't mean he can't relearn to trust you to pull a bridle on properly onto his head...OR simply unfasten his bridle so you can put it on like a halter...it's a pain, but MUCH safer than what you are doing currently. Or invest in a halter-bridle combo, so all you have to do is slip the bit in his mouth and snap the bit in place, rather than fussing with the bridle.
I have been pushed over by him, I know it's not the safest but I've been doing fine thus far. If I do it slowly, he will out smart me and I'll never be able to get it. My coach tells me to just do it fast and get it over with over than having to fight with him to get it over the right ear.
And I will try putting it on like a halter..haven't thought of that one yet. Posted via Mobile Device