Have I got the right timing?

I have a school exam coming up and I need to write out a song to practice. Im having some time issues as the fills don't fit in one bar. You probably don't get what I mean, If you would please take a look at the file and the song https://www.youtube.com/watch?v=dfSPRJjvyLY and tell me where ive gone wrong, Thanks in advance :)