changing subjects y12 - y 13?

hi, im currently in year 12, and studying law, criminology and sociology. to put it shortly, earlier in the year a lot of things had happened in my life which caused my mental health to decline pretty badly, and i ended up taking up to almost an entire month off of college. im still massively behind in work, and im scared i wont get a pass/good enough grades in mocks coming up bc of it. i think i want to drop law to change it to psychology, as its not something im interested in anymore and wont help me with my future career + i cant take psych in the unis i wanna go to without taking it at college. i plan to take a gap year anyways, so i was thinking if its possible for me to continue sociology and crim now, and then take psych in y13 for 2 years aswell. tbh, im scared to ask my tutor about it but i think its something i want to do even tho im worried. i just dont want to take the risk of continuing on as i am and get 3 really bad grades if i could do this and possibly get 3 better grades. sorry this was so long but if anyone has any advice/tips for me id extremely appreciate it as im just so lost on what to do!! thankyou

Consider repeating year 12 and taking all three subjects together. A lot of unis require a science to study psychology so check the entry requirements for the unis you are interested in. Also, if you are taking WJEC Level 3 Applied Diploma in Criminology, please be aware that it is not accepted as an A level by some unis.

What you're proposing is similar to what I did.

I started Yr 12 doing French, Spanish, Law, and History.
Halfway through the year I dropped Law and French.
I started Classical Civilisation in Year 13.
Then I stayed for an extra Year 13 to finish off Classical Civilisation. As that wasn't enough to fill my timetable sufficiently, I also resat French (I'd gotten a C but wanted a B), and did GCSE Italian.

I then took a gap year, and started uni (University of Leeds) 2 years "late".

So yes it's doable, or at least it was in my case. Although unis do prefer you to take all three A-Levels together, if it's not an oversubscribed course you're going for, you have a high chance of being considered regardless. Unfortunately I do think that psychology is very popular at unis, so they may be more picky, so do bear that in mind.