I’m trying to analyze which posts of mine are most successful — prompted posts? My own ideas? Short posts? Long post? Personal posts? Posts about writing? I have come to the conclusion that I can’t predict what will get me more viewers.

I’ve always thought prompted posts performed better than non-prompted posts, long posts better than shorter posts, and posts about writing better than personal posts.
Yesterday, a short prompted post about what personality traits I disliked — with no title — performed better than any post I’ve had in the past couple weeks. This is expected because the prompted posts appear to get more circulation. Yet I’ve had other prompted posts only get as many likes as one I’ve written without a prompt.
My best performing post of all time had to do with my wedding anniversary. Other posts (even about birthdays) have gotten little attention.
There seems to be a randomness to what plays well and what does not, which means I’m learning nothing about how to improve my traffic.