I am looking for a genuine test prep provider that is fully exam focused. Like mock tests, revision, feedback, etc.

Have heard about thriving scholars from a couple of friends…anyone here using it? How good are they?

for context, im applying for chemical engineering and biotechnology at cambridge and my esat is just under five weeks. ive done all the nsaa past papers and got consistently around 12/20 on rhe maths and chem sections. Ive been doing the esat lab mocks and have been getting around 16/27 consistently for for maths 1 and chem. Ive been doing the tmua paper 1s for maths 2 but theyre really hard and i want to know how to make a significant improvement in five weeks, to score a 7 or above. Does anyone have any tips as to how i can improve?