Answer:
If I were stuck in a video game the game I would pick to be stuck in the Anthem. If I was stuck in Anthem I would spend time doing small contracts and missions to get parts for my suit, Then I would complete the game doing the final mission and getting a legendary javelin (armor). Once I got the legendary javelin I would complete all of the flight races on the map attempting to get top of the freelancer leader board on all of them. After I have done all of that I would go home to Fort Tarris. when I get their I would restart and doing it all once more get a new suit.
Edit to your needs,
Jack