I - and I'm sure a great many others - am heartened by you enthusiastic words of appreciation. I am also appreciative of the effort made by those who contributed to the bundle and getting it to you. Please keep us informed of a project or two as you go along ... we like seeing your skills develop - and to help if we can.
As for the scope - yes, there is a bit to learn, but making sure you are safe is step one.
To that end, this is typically near the top of the customary "recommended viewing" list...