How do you know if you're truly interested in something and picking it up as a hobby or if that's one of the signs things are getting or are still problematic.

I'm trying to expand my list of early warning signs, and I was just wondering if you knew the difference if there is one. I know some people get hyperfocused on something and go all in, and that's me, but I don't know if that's manic me or just me me.