failing a-levels

im in year 13 and got u's in my year 13 mocks, is it possible for me to atleast get B's if i make anki flashcards for all the content and review them along with doing pastpapers and essay practice. i have till march. i failed because i was struggling with mental issues and couldnt study, along with stress about careers because i feel like im working towards nothing. im so lost, i want to get into web development but no clue how to do that without a-levels. my a-levels arent relevant either which makes it difficult, someone please help

anki is really great for learning content. It certainly wouldn't do any harm to try it out.

im scared I’ll get U’s again, these subjects im not passionate about either I regret picking them. I should’ve done something like media psychology and economics instead of this I regret picking them so much and now I won’t be able to get the grades and will ruin my future im so depressed and worried and scared. I don’t even know what career to do I don’t know I’m so lost