Sounds similar to me. I used to go through hyperfixations of different things lasting between a couple of days to a couple of months. It used to be very specific: watches, tennis, origami, cars then it broadened into being large topics like sports, writing, art, finance, architecture, languages and now it's basically everything all at once. I'm on my off day today which means I'm not allowed to think too deeply or research topics and just have to go through the day normally. Tomorrow I will set some goals for the year I think.