I've had this issue since I was a child. So many hobbies I'll get into, research extensively, spend the money do it and then lose all interest whatsoever. Sometimes it can take weeks, sometimes days. Sometimes I'll find old hobbies and get back into them but the process continues. I'm always looking for something new new do but it seems that I can never stay satisfied. I wish it weren't that way, I wish I could be compassionate about a single thing and stick with it but I cannot. I don't know why. I have been tested for ADHD and told my results are normal and this type of behavior is normal for a lot of people.