How do I restore my timeline?

[BEAN]

My timeline turned into a plain double green bar when before it had all the cuts I could see. 

It was fine but after I opened a new timeline inside the same file it changed. 

[Ali Jaber · Accepted solution]

It looks like you nested your original sequence, most likely by dragging it into the "New Item" button in the project panel.

Anyway, all you have to do is double click on that "double green bar", and your original sequence will be revealed...

[BEAN]

Thank you so much Ali! I'm a super newbie and I thought ruined everything and was feeling pretty bad but you made my day and now I feel great. Thanks to you. Thanks again!!

[Ann Bens]

[BEAN]

Thanks Ann! What's a nest? Is there something I should read, watch or follow that you recommend? 

[Ann Bens]

That long green clip is a nest.

https://helpx.adobe.com/premiere-pro/using/edit-sequences-loaded-source-monitor.html