Iam not able to understand maths concept quickly. I take longer time to understand. How can understand maths concept quickly. No one explaining me clearly. Who so ever i ask they got irritated

Try to get the understanding about the problem. Instead of just applying the formula and getting the answer, focus more on conceptual based approch. Practice more problems. Thanks.

To be good in Maths, try to attempt individual topics books and take help from tutor.
step by step upgradation in the question level is important rather then attempting difficult level.

try to learn everything logically and make your basics strong, you will feel better