How should I go about getting into online play?

For starters, im more or less a complete beginner at this game. I play it a bunch as a kid but I was mostly just killing standard bots and having fun. The game has caught my interest again and I'd like to get into it but I'm wondering if theres any room online for a low skilled player like myself to play? I'm doing a bunch of research to figure out how to be good but since I'm only playing bots I feel like I'll cap out pretty soon and will need to play online. Are there enough low elo players online for me to be able to get games going? When HD first launched I tried playing a little bit but when I went online I was mostly just getting kicked from lobbies and don't think I got into a single match