Post what you want to! Don’t post something you think others will find you appealing for. If you really want to get to creating, then make sure it’s for yourself! And that really goes for anything in terms of creativity/social media use. The more you do it just for the likes, or just to fit in with a relatable crowd, the less fun it becomes. If you want to do comedy, write some stuff and perform it. Over time you will nail it and build a crowd. Want to create something that may seem alternative/“artsy”? Go for it. Don’t be afraid. If you have a vision, get whatever you need and film it. If it doesn’t seem right at first, re-film it and edit it till it’s good. Last point from a personal perspective: never regret your past posts or criticize them too hard. Sometimes you’ll have a post up for days or even years and then notice something off about it that you maybe didn’t catch when editing/uploading. Do NOT get hung up on it. Learn from it and move forward.
I guess really the main point is make sure you do it for yourself, and always make sure you’re having fun doing it.