If the wind will not serve,
take to the oars.
-- Latin Proverb
If one method is not working, try the other method.
If you try many methods, you will be able to find the best that suit you.
Each and everyone of us have difference learning style and some methods that work on others may not work on us.
The opposite is true too!
If your friends or study group are not able to help you, try to study on your own and you may be amazed how smart you are if you put your heart and soul in solving your study problem.
Instead of asking for help from friends, offer your help sometimes. In helping others, you will learn a lot of things in a new way!