The poster seems to be worried about doing those extra things as a solo - not sure the larger number of things and bigger ship factor much into that fear.
When you check in at 45 days out, use the barcode trick to see your assignment - many here find out their assignment that way. Having a GTY cabin assigned before check in seems to be becoming rarer.
Use the online planner instead of the app and on the dining tab scroll all the way to the bottom where the MDR should be listed. If you can make reservations you have been switched to MTD, if you can’t you are likely still on the waitlist.
Use the online planner not the app to do that - the shows may not yet be available. Assuming you are talking about MDR dinner reservations those are only available if you have MTD - that is usually at the bottom of the dining tab.