1. find somebody who knows how to play (doesn't have to be an actual teacher) even if it's just a little better than you. if you can actually sit down with someone (or facetime or something) and have them walk you through how to play it's way easier than watching a tutorial
2. force yourself to play every day even if it's just for 15-20 minutes. if you're only playing guitar once a week it's gonna take a really long time to memorize stuff or see improvement
really at the end of the day being able to take lessons is a game changer and how i've seen the most improvement myself but that's also not an option for everyone so definitely make friends with other people who play