Yeh, I get that. I went through a period last year with super focused work and a terrible internet connection, it put me off playing so much.
And I'm right there with you in terms of being a long time fan. I've been wanting Halo or a Halo like on PC since the Halo CE port way back when, and Destiny really scratched that itch. D2 is in such a great place right now, and as a new player you will have so much content for your money. I recently switched from ps4 to PC and had to start over, and I had such a great time catching up. With all the improvements and additions they're bringing, this is a great time to jump in too.
I'm always down for grouping on PC, and we have a really friendly and active community here. See you in the discord mate!