Hi Charlotte, I think the best would be to find topics you are usually interested in, and go watch them in Bosnian. F.e. if you like beauty tutorials, go watch YouTubers speaking in Bosnian about beauty trends. It will be harder to understand in the beginning, but because you like the content, your brain will make efforts to understand the context, so you would be surprised. I believe it is better, than watching boring dialogues or cartoons, even though you would understand better what they are saying. Wish you lot of luck, Farah :)
btw I find her channel very interesting: https://www.youtube.com/user/jedinijedina1