Here are two links to what my timeline looks like:
Fully zoomed out:
Zoomed in, all the way at the end:
Am I doing something wrong?
I have that thing that you highlighted SORTA at the end of my actual video, however, like I said that's at 2mins. The time line goes on to 15.
Looks normal to me.
Your actual timeline or rather seqeunce is the length to the last clip or audio clip which looks it it set to 05.26.21. (see program monitor)
The rest is extra working space.
If you want a different seqeunce length say till the end of the last videoclip set your Work Area Bar.