How much will a bad 1st semester junior year hurt me for MIT/Stanford/Princeton/Caltech/Cal?

@“aunt bea” I get it I need to get back to what’s important: school work and amazing teacher relationships and good mental wellness. I’m normally not this stressed and I’m recovering but the reality is that what happened this semester will be detrimental to me in some way and I need some advice on how to compensate for it, which is the reason I’m on this site. I felt I was on the right track till this report card came in and now I see how awful of a position I put myself in. Redeeming myself is easier said than done. I was seeking some advice on turning my laundry list of ec’s into a strong and accomplished profile that demonstrates a spike. Sorry if I’m taking this too far, but I’m just hoping to gain advice from the people on this site who are way more knowledgeable than I am. I know that I’ll have no choice but to write some really amazing essays this fall and this site seems like the best place to get me set up for that. College applications are a very stressful thing at my school and there isn’t a great support network here for those aiming high. And having parents who have the mindset of their family’s continent which is that elite college admissions in this nation is only based on grades and test scores. Some of my friends also want in at a reachy reach and we all have weaknesses. For me its grades and being less superficial, for them it’s extracurriculars.

And for your last point, I take the blame for that C. I know I deserve it and want it to be a learning lesson. I could’ve done better if I was not lazy and I’ll be sure it never happens again.