Hey,I don't think this to be a matter of worring. Time is yours. U can do it if u will believe that u can do it.If ur teacher is going much fast than u , then just tie ur belts right now & run fast. Moreover, a teacher's responsibility is to try to make the course get completed fast.He has only to teach physics,but u have to read all subjects.Just work some more hard & u will see that ur effort r doing amazes.
Don't be get dissapointed.Make a list of things that u do everyday & number them up according to their preference.No doubt, study should be given top priority.Don't get hurried up.Be swift but efficient.
And in last,don't think urself to be weak than others.ALWAYS REMEMBER,THE IITIAN IS RIGHT INSIDE U.
plzzzz rate me.