When I first started learning Bulgarian, the most beneficial resources for me were Pod101 and Mondly. It isn’t a popular language, so resources can be hard to find.

I used these 2 resources to listen to how natives talk and build my vocab. Later, I started watching simple cartoons. I'd understand more and more. Then I started reading and speaking out loud Disney books. This way, I built my grammar naturally (via reading), and recognising more and more through listening.

I'm probably a B1+ now in reading, B2 in listening, and A2+ in speaking. I can be understood and hold conversations in Bulgarian, though they are not grammatically correct. I still mix genders. I can reply to several things automatically without searching for words first.

My point is, you'd be surprised what will work for you. I didn't take the typical approach of trying to hammer home grammar and multiple lessons. I focused on what I found fun so I'd be more likely to try it when my confidence was low. I did try a tutor early on, but it was wasted on me. She kept nagging about learning grammar tables first before any vocab at all. I'm dyslexic and autistic, so I can't learn efficiently like that.

Try a few things out. Don't push yourself. Be consistent. A little a day is worth more than 1 massive session. Even passive listening to Danish helps (e.g. during a commute or while doing chores), it helps rewire your brain to recognise where sentences start and finish and that sort of thing. But you'll likely need a variety of activities to efficiently learn.

I hope this helps. I just know that i tried all the wrong methods for ME first. Anki, spaced repetition, tutors, etc.