Asalam mu alikum dr... I have make d many mistakes in my life even after tobha(apologize) what will I do will allah forgive me... thanks... do reply... I will be waiting for your answer.

Walaikum salam,

For detail see the following links:

http://www.islam-qa.com/en/ref/23491/repentance

http://www.islam-qa.com/en/ref/46683/repentance