Seems like your hyperfixating on stuff. Totally normal adhd thing and you shouldnt be shamed for it. As long as your not going bankrupt i see no reason for family to have to insert themselves. Keep doing what makes you happy and screw the other noise.

That is a totally normal thing to do when you have ADHD. If it isn't hurting you, then it's really none of your sister's business. This sounds like a her problem.

Oh my god. This is me. Yeah. That's totally your ADHD. It's just hyperfixation, totally normal. We become attatched to and obsessed with things very quickly. I have a cycle of TV shows that I hyperfixate on. I usually do for a few months and then burn out until something about it piques my interest again. Rinse and repeat. It's becauae your brain had a hard time maintaining interest in things so when it finds something that keeps your focus it doesn't know what to do with itself and wants more of that feeling. I mean...more or less that's what is happening. I have like...over 100 pages of fanfiction open in my phone, sorted by fandom and theme. My sister gets obsessed just like I do but no one else in our families do and so does my best friend. Maybe it means I don't connect very well with people not like me but that doesn't mean that I'm wrong for doing it. Your sister needs to chill out, that is such a dumb thing to criticize someone for.