You can use markers to sort of skip around like this. If you place a marker, you can edit the marker name as well and they’re searchable in the browser.
Maybe a better way for you to keep organized if you have a long project – make multiple sequences and split up your project. For example, act 1, act 2, act 3. Keep things in logical segments and edit them in their own timelines just for sanity’s sake. Then when you’re all finished, copy and paste them all into a brand new timeline and do a little refinement to make sure they go together. This is my preferred method for dealing with long sequences usually. You just have to be organized and name things carefully so you know what order to assemble them but you should be organized already anyway, right? 🙂