Sophomore at Target. Feeling very behind

Yo

Sophomore at target right now. I have a good GPA, and I've been working on my start-up since junior year of high school. I have some pretty impressive stats to put on my resume from it, but I have 0 finance background. While the start-up is going relatively good, I need to hedge for post grad.

I need to get a sophomore summer internship but also need to start recruiting for junior year SA roles. I don't know where to start and feel like time is very quickly running out.

Apologies if this is often posted, but would really appreciate any resources on recruiting and where I should be putting my energy since im home pretty much all of January.