I've also tried establishing channels, brands or however these are called on either YouTube and Twitter(X) with the aim to build a high follower base and monetize on them. I saw progress, but the only thing I realized about that is the "time" I wasted for that little "return". Thus, I've switched to ventures that imply spending less time and earning more. Even if not 4-5 digits, but in line with my involvement.
RE: Why is it difficult to build ventures from scratch?