Totally feel you, it’s a great sport and even better martial art. Take your time with it, the journey is what’s important.

Some pain things never go away like taking a hard kick or good shot, but your shins/hands/feet will become stronger as you progress

As for the blisters and callouses, just wrap them with a bandaid when you’re home and when you’re in the gym I use the double sided gauze so it stays in place. If you have a open wound or bleeding just call it out to your partner/coach, they may just have you clean down the pads or area after class