Poconos - beginner - tree climber - anyone nearby for instruction/mentorship

Hi!

My name is Grant, I live in Barryville, NY and am interested in learning more about safe tree climbing.

I have lots of 60-80 foot solid Oak trees I'd like to safely ascend.

I have some basic equipment - petzl harness, grigri, static line ( 6 years old 9mm )
some webbing and about 6 caribiners. A friend set up an anhor to about 30 feet a few years ago, but wanted to learn myself and wondered if anyone know of a course/certification or mentor nearby ( 1 or so radius travel OK ) or club to join?

Happy to have found this forum,

Grant