I took a very quick, and brief look at some of your videos and it looks like you've moved from Germany to America? Well, that's a great oppurtunity. I know as someone who is interested in cultural differences. Perhaps you could do videos comparing the two nations and the two lifestyles. Whether that be food, sweets, music and TV. You could make videos where Germany trumps America, or where America trumps Germany. You could make some videos of the key things you miss from Germany.
Or, if you want to sway away from Germany and want to keep things more focused on your day to day actions, there are always tags such as #OOTD (Outfit of the Day) or pick up a new skill, e.g skateboarding or and instrument and record that, but that would require a lot of attention.
What are your hobbies? Do you like reading? Do some videos on your favourite books? Show off your collection?
Like films? Talk about your favourite films, almost like a mini-review.
Or, there is always the possibility to do a house tour or just literally recording your day? Obviously not a 24 hour video, but if youre doing something interesting such as going to the beach or something else, record that and condense it into a small video.
Ofcourse, it is totally up to you. Just some suggestions.