1st time at the track advice.

Your gonna have a blast
There is a lot of good info here and it can be overwhelming so just take it one step at a time.
I was lucky and my buddy worked with me last spring for my first passes with the tree.
Two things I am gonna suggest
Keep some water handy as its always hotter than a pistol in the staging lanes.
And get used to wearing the helmet with the car closed up(I have a hard time with this but that could just be me)
Doug
By the way this can be very addicting