hi!! i did my a levels this year and went from a C in mocks to an A* in my actual exams without a tutor. i used to be in the same position as you and considered getting a tutor for so long but i never did and i am lowkey kinda glad i didn't get one.
in my opinion chemistry is a very repetitive subject. what helped me the most was doing exam questions and spotting patterns/key words for each topic (e.g. the process for a back titration calculation is usually the same, the way to explain benzene reactivity is usually the same, the key words wanted in definitions is usually the same, etc). i was also really bad at organic chemistry but genuinely one day i just sat down (this was like a week before my organic exam lol) and tried to memorise the entire synthesis chart including pathways and reaction conditions (it sounds like a lot of work but i promise literally dedicate like 2 days solely to this and keep doing it a few times a day so it sticks like spaced repetition yk) and then i was literally able to draw out the entire chart by memory and then organic chemistry became a LOT easier.
sorry this may not have been the answer you were looking for but i hope it helps regardless and good luck finding a tutor!