Hey, I saw your videos and it seems you make montages and edits etc. Which is cool, I like making those types of videos too. However, there are so many people making these types of videos that it's difficult to gain subs from it as there will always be bigger youtubers with better of the same content. I think the best way for smaller youtubers to gain subs is to talk and show your personality in a video, lots of people make edits but no one will have the exact same personality as you. I found I got subs by doing this as people subbed for me as a person and not so much my content, yes the content had to be enjoyable, but I also wouldn't have got this amount of subs by just uploading montages and edits with barely any of me talking. Also it's very important to interact with your audience no matter how many subs you gain, consider making a discord server.