I would like to suggest, this is going to be a long process, it may be a ton of fun to go to a track near you and see if you can join a crew of a current race team ( any class ).
You will learn aspects of "racecraft", rules, courtesies, car building, stuff you're gonna work on, so get to see it as it should be, and then bent, lol.
The other reason will likely be finding other team members to give you a hand, pass on their experiences, you actually join a "family".
Also consider picking up a "used racecar" any class, to go learn and have fun, and likely find more help.
I built and raced super modifieds and late model stock in the 70's and 80's, my daughter dragged my *** out of my recliner a few years ago to build her hubby a racecar, cuz he won all kinds a stuff I-racing against Hamlin etc.
After 6 yrs of racing we won 2 Championships and set 2 different track records in the oldest "used" car there.
Enjoy your new family.