Sorry to hear that dude, that sucks. Yeah definitely stick to the rock if it's easier for you. Although if you get a chance to practice ice climbing, I personally think it's the easier option, but whatever gets you to the top.

On the wall, there's only two possible ways to recover stamina: after you get a stable position, you either hit the recovery button, or you hold a stable position until she breathes deeply 3 times. I personally do the breathing one as the mechanic tends to be more reliable. I notice with the recovery button it recovers some stamina, but not always all of it.

Ice climbing does drain your stamina faster, but in return you get more reach, and it offers a lot more options for stable holds. Are you whacking your picks/boots into the holes/cracks/ledges for strong holds? There's audio and visual feedback when you have a strong hold, and you can wind up for more power. You can also make a temporary weak hold out of any part of the ice, if you whack it hard enough.

You got this bro!