Second, do you have an actual startup idea to work on right away? Or do you simply want to do anything that comes to mind? In my experience, it’s much easier to get started and follow through when you’re targeting a specific, known goal. I’ve seen people jump into “doing a startup” without an actual goal in mind. They spend a lot of time spinning their wheels and pivoting over and over again. I’d suggest nailing down the business idea before you leap.
Third, consider finding business partners first. Solo entrepreneurship is extremely hard and can be very lonely. It’s much easier to work in pairs or a group of 3 founders.