I missed out on road racing and used to wonder if I had the right stuff for it, beyond just a desire. I did other things for many reasons but if I'd know about vintage racing things might of worked out differently.
Learning limits is touchy business as well as looking out for others. I know how close to the edge anyone is when in racing moode so it ain't just you to think about taking out. I used to think that if ya just followed someone else and took their lines your bike could too, NOT SO!!! Also following someone vs leading the pack is extra adrenalin thrill to control. I found that someone else's lines may collide with yours so can't always pick best line for your bike. Like aiming into crash ahead so they ain't there when you are, may have to aim away form crash that may lose your place over.
One firm rule on of mine on public roads is never ride to get scared but to find bike limits or ways around it, you do have to cross fear barriers or don't expect to be very competitive. Riding fast is its own reward going out on track but racers are there to win so pressure is on and being scared of your bike ain't fun nor safe.
In a lot of ways going race fast is easier to work out basic limits. How far to lean til fouling, at that point how much power to break free somewhat, then at those two limits how sharp can forks turn. Ballistics give some grace and time to recover or explore further, on next pass. After that the lessor turns are a relief.
Braking is the hardest part and I've learn hard way don't expect much of brakes while leaned so best wishes learning to slow enough staying in control anyway ya can.
I wonder where I'd find a crew and bike hauler and maybe a sponsor with cool decals.