Ok guys, I've read some threads on /tg/ about people using some programm to play campaigns together online, but I've got no idea where to start or who to ask or when to search

I'm a new guy, only D&D experience I have is with some PC RPGs which used that system (which automatically means= almost none), but I'd like to try it. Can you guys point me in the right direction?

Pic related, it's a graphical representation of my determination to play