your parents are still in those old days where all the children regarded their parents with fear...they believe that you will do good when the y scold you..they are not at fault..only their ideology is wrong....time will change everything sarala..they are still your parents...love them more...show your love to them..
people get angry because they feel situation is out of their control or have afear that if they don't get angry the other person would not fear them and would lose control over him/her. and as per the other replies if it's a personal problem which i can see than my advice would be relax!! don't worry , talk to them openly about the problems and you may find a mid way out.