There are no shortcuts here. You have to work for a good grade. Never, I repeat never cheat

Go to class. The more exposure you have to the material, the easier it will be to recall the steps to doing a problem later. Most professors and teachers will do lots of example problems that mimic the problems that will be on exams.

Start studying while you still have time to go to a professor or teacher for answers if you need to. If you start studying too late, you leave yourself with no options.

If you can, join a study group. Different people see concepts in different ways. Something that you have difficulty understanding may come easily to a study partner. Having his/her perspective on a concept may help you to comprehend it.

Never stay up all night studying. You will be tired in the morning and will have zero concentration.

Drink plenty of water throughout the day, if you are dehydrated, you can lose lots of concentration.

Hope this helped

Good Luck!

Vicky x