Ok, I have movies in "MY LIST" but I do not see anywhere to access my list, where do I go to find "MY LIST"?
Different Channels/apps put these lists/continue watching in different areas. They also call them different things so should let us know what Channel/app you are referring to.
If you are referring to Tubi's "My List", it is located on the left side of screen. (press left arrow to expand icons from Home Screen of Tubi)
https://help.tubitv.com/hc/en-us/articles/218871097-What-is-My-List-and-where-can-I-find-it-
Exactly which channel are you speaking of?
Once you have added a movie/show to your Save List, hit the Home button on your Roku TV remote. (The one that takes you back to your main screen with all the channels). Then arrow down to 'What To Watch' in the list of options. Arrow right and arrow down til you see Save List. Your saved show should be there.