I have 8 tracks in a project and now i can only see 1. Help please

Not sure whaqt i did but i cant figure out how to view all my tracks again, i was holding shift and i clicked on a track and now all i can see is that one track and i cant view any of my other tracks and i have no idea why.

Hi, I had the same problem today, but I found the solution.
You've got to click on the 'zoom tool' (magnifying glass) and then choose for 'Track manager'.
You will see all the tracks, but only the one that is on your screen will be marked.
Just click on all the other tracks and it's okay!  :-)
 
Good luck!
Walter