Hi John! Thanks for your answer, and sorry for answering so late, I didn't see the notification... I realized that the problem was exactly what you're pointing. I could solve it making the loop() run only once with each interruption, kinda worked, but is not perfect, i'm still working on that 
I'm going to try aproching the problem the way you pruposed, I think is more efficient!
this is what I've so far - YouTube
Thanks!