"physics and maths tutor" have some questions by topic - even if you've already done some of them you can see if you've improved.
one of the distribution questions asked you to sketch a graph I think - I searched for it and places like the Sutton academy or something have booklets of questions but no idea which exam board they were. I could try and find the specific ones I did if you're really stuck?
when we did practice questions for homework, they would take questions from multiple papers and put them together - I don't think the questions I'm thinking of are from an actual RM paper, they were from another paper that just included RM. so maybe look through papers of options you didn't take checking for RM questions?
there are also videos out there too if you're worried about content. physics and maths tutor do them, and crash course psychology too. and I'm sure loads more. if you've done loads of practice and work, you're probably in a good position for exams.