Per a previous thread, the OP believes that their parents have already told friends/family that the OP was going to be going to one of these programs.
@coolcats998 — it doesn’t matter what your parents have or haven’t told their friends. That’s on them, not you. And these summer programs are meant to be fun and / or learning experiences for the student. And except for a very very small handful, they don’t help with college admissions. And most are unbelievably competitive.
I hope you can talk with your parents and that they will be supportive of whatever you choose to do with your summer at this point. You said you had a job lined up. Colleges love applicants that have had summer jobs. It shows a lot of maturity and initiative. Hopefully you can also go on the family vacation if you want to.
Please let us know. We are all rooting for you.