Not worth doing at the expense of other things, like relationships and your sanity! But to be able to accomplish such a task is a great feeling.

Just remember:
Grades should not define you. You should always strive to do your best, but never compromise anything to acheive an overly ambitious goal. Be careful that you do not fall into the trap of needing grades to evaluate and validate yourself—in the real world we are not graded.

Try your best and good luck!