181 subs in what, 3 months? You are doing very well, I think you should continue what you are doing for a year, get better at what you are doing and by then you have enough videos to estimate what kind of content gives you more views/higher retention.
Channel growth questions are very common here at YTtalk, and therefore the staff lock these kinds of threads. We have the "Tutorials, Tips, and YouTube Guides" forum section with many helpful threads that try answer these kinds of questions.
There are lots of resources here where you can find more information to answer your question: