Should I start my business now or later?

For context, I’m a senior in college. I’ve got two job opportunities, both as an analyst for real estate developers. My plan is to start a real estate company- acquisition, value add, development- as soon as possible. Candidly, my dad is a wealthy individual capable of contributing to a fund raise and leveraging his network to further that raise. My question is whether I start now with small projects and just learn it on my own, or learn the business and potentially postpone a larger income from my own practice. Any advice helps. Thank you.