“What’s the best way to study maths for strong problem-solving and retention?”

This is urgent bcs a most imp exam is near and problems that i face

•Mind wandering in thoughts

•Can't analyse if things get hard

•I want to study at nights but I wake up at 5 am

So i think its ok

•i idk how to analyse the syllabus to complete it in time as gat is also imp, so basically exam is NDA and i think i am newbie

HELP