Does anyone have advice on learning new openings? I sorta found that I only play Scotch opening for white and Caro-Kahn for black and I want to try some new stuff (I guess I should practice against a bot to not destroy my elo?)
Hi there, I'll give a longer answer. First, I can't honestly recommend openings at a more beginner level if they're really driven heavy on theory and tactics--they're demotivating if you're new to learning openings; for that reason the Scotch might be a lot to explore. If you ever get the chance to review GM games on Youtube/chess archive site played in the Scotch, you'll see how "normal" it is to get chaos on the board.
GothamChess has a running YouTube series called '10 minute chess openings' which I think is a really good introductory blend of giving you the first couple moves and then explaining common motives and ideas so you don't need to actively memorize 8-10 move variations. I'd watch some of them and pick at most 4 (2 each for e4 and d4, one for each color).
From there, you should play only people in slower rated games. Why? The short answer is that bots have misleading ELO and at low ratings purposefully avoid playing theory in the opening you are, so you won't actually get genuine practice in what you want to learn. Avoid worrying about online rating--mastering an opening is an investment to eventually beat people out of the (new) opening.
When playing, have some agency in reviewing your game for mistakes afterward, mostly in the opening. More often that not, it'll be just learning a new idea in the opening.