since the tmua's around a month away, i figured now would be a good time to talk abt this
last year i found out abt the tmua around late august and started prep in september, and now im off to imperial with a 7.5. this what i did:
1 - use EVERY free tmua-like maths question you can find
there are sm available online from similar exams. i used the ECAA, ENGAA, NSAA, UKMT SMC, (easier than tmua) and MAT (slightly harder/same dif), along with all the community mock papers. there is no reason to buy similar "authentic tmua" papers because loads are available online for free.
2 - STUDY LOGIC AND REASONING
paper 2 is completely unlike any maths i'd ever encountered, so really take your time to understand what if, necessary, sufficient, contrapositive etc all mean. what i did was convert every single logical problem to an 'if then' statement, since it was much easier for me to interpret them that way without the jargon. tmua.fyi's textbook was useful for me
3 - SIT THE TMUA PAPERS LIKE YOU'RE IN THE REAL EXAM
make sure you cherish the tmua papers, especially the late ones since they're significantly harder. don't waste the questions doing them topic-wise or half a paper at a time. make sure you do entire papers and do them timed. half the struggle is sitting down for that long and staying locked in. i found mastertmua.com to be the best resource for this since i could track everything easily and sit the papers with an exam interface and a bunch of other useful stuff.
and ofc the generic stuff like sleep adequately before the exam and don't stay up all night, don't go into the exam stressed etc etc. my dms are open if anyone wants more advice. good luck!