You don’t need saving. It’s great to have that drive and apply, but also know that very few get into T20 schools. Even beyond that CS is very competitive. Just had my friend’s kid get deferred for NC State for engineering. He has a 4.0 uw, 4.59 w, NMF, 1560 SAT, and has taken 3 college math classes beyond BC calc. Even the best of the best get turned down at these places.
You should focus on what you can, which will be doing well the rest of hte year and writing good essays.