Welcome to boat restoration! There are many on here that are experts and can help give you great advice. I am not an expert, so I will leave it to them! Definitely go through other rebuilds to learn.
My one piece of advice is to go buy a good respirator, a tyvek style suit, gloves, and some eye protection. That is not optional. You will need to grind the fiberglass and that dust is not good to breathe or have in your eyes and you wont want to be itchy!