Internships summer before freshman year

Im in hs and submitted all my college apps - waiting to hear back. I am looking to break into either top BB or EB firms mainly to exit to PE or join as an analyst right out of college at a PE. Skip the "enjoy senior year" stuff. I don't have crazy expectations to get into a target school and what to maximize my chances in the worst case. My resume has very little finance related stuff (i was pretty confused in hs). I have done finance courses and studied basics - P/E, LBO's, balance sheets but this isn't reflected crazily on my resume as most of it was done in the last couple months. Also for context I am in a 2-3hr proximity of city like (NYC/SF/LA).

My questions are:

- When should I start reaching out for coffee chats and sending cold emails/resumes?

- I am looking at vc's and search funds but would ideally like to join small PE or low tier MM IB firms. Is this realistic? Where should I target my efforts?

- Aside from internships, what can I do rn, as in before fall semester, to make my resume more attractive for finance? Especially given that worst case I am looking to go to my non target state school that has really competitive finance clubs/programs.

thanks in advance