What should a 7th grader be doing?

i want to make sure i am irresistable to colleges in the future and im virtually ready to sacrifice any number of hours of sleep to make that happen. sowhat am i supposed to do appart from a 3.83 GPA, learning piano, and mastering painting, preparing for the psat (with books), doing at least 5 clubs over teh year (they give no credits) and doing occasional contests. please give me everything you think i should do to be say harvard material in the future (not that im ever gonna get in) but just so can see what i mean. thanks in advance