Thank you so much for your feedback! I'm really grateful you took the time for it...what you wrote really helps :)
Ending 9 is actually ending ?? - I know, I should've probably clarified it better...
As for ending 2, if you're still stuck, I made a walkthrough (you'll find it here in the download section) and if what I wrote there is too vague, please let me know and I'll gladly help you.
(just curious: did you also unlock all the images in the gallery? And thanks again: I'll try my best ;) )