Whats up /out/

I wanna start doing outdoorsy shit.

Firstly, i intend to climb a mountain. I live in england so it seems ill likely have to get the train down to the lake district.

Ive got basic first aid training, good walking boots, a decent coat and back garden tier bushcraft skills.

What other items/skills do I need, and once I have them, do i just rock up whenever and climb that shit or do i have to appease some gods to avoid exploding?

Thanks guys

Pic related is the kinda thing id like to climb, idk if it exists in the uk though outside of scotland though.