Let me list them.

1. The LEGO dimensions kit (it comes with stuff to build so it counts)
2. Starfire LEGO dimensions pack
3. Raven/ Beast boy LEGO dimensions pack
4. Blossom/ Buttercup LEGO dimensions pack
5. Bubbles LEGO dimensions pack
6. Marceline LEGO dimensions pack
7. Finn LEGO dimensions pack
8. Jake/ Lumpy Space Princess LEGO dimensions pack
9. Wonder Woman LEGO dimensions pack
10. Tina LEGO dimensions pack
11. Eris LEGO dimensions pack
12. Unikitty LEGO dimensions pack
13. Nya LEGO dimensions pack
14. Lloyd LEGO dimensions pack
15. LEGO city set
16. LEGO minecraft set
17. LEGO Ninjago Throne Room set
18. Technically, my younger sister has a LEGO Cinderella set so I'm counting that
19. LEGO Chima set (am I the only one who actually likes that show?)

And that's it. I've got 19 sets at the moment. I probably forgot some but whatever. What's the moral? Never doubt my obsessions.