I am going to go against the grain here and say eat early so you can relax for the afternoon. We eat at 1pm.
If you buy a good fresh turkey it won’t take long to cook. And will be much tastier.
Start with an empty kitchen bin and an empty dishwasher/sink. Makes clearing up as you go along loads easier.
I never bother with a starter but canapés sound good. I would get someone else to bring them. Remember to tell them they will have limited kitchen access so they don’t turn up wanting lots of space and every utensil.
I prep all food the day before but don’t cook anything until the day. Except the gravy that is which I either do ahead and freeze, or buy. So all veg is chopped, pigs in blankets wrapped etc the day before.
Don’t do too many options. Roast and mashed potatoes is asking for trouble.
I make use of foil trays but whatever you use check you have enough and that they fit in your oven.
If you have a slow cooker it can be good for keeping things warm. So I usually put in turkey and pigs in blankets first then take out the pigs in blankets which then go in the slow cooker to keep warm, and put in the roast potatoes. When the turkey comes out the parsnips and stuffing goes in. Veg is on the hob. I don’t do Yorkshire puddings as it’s just too much effort.
Ask someone else to lay the table and sort out drinks.
Decide in advance if you are serving up or putting everything on the table. If the latter you need serving dishes. If the former you need to know what everyone wants.
Ask someone else to bring desert. Again should be already prepped.
I sit down with a glass of wine by 2:30pm having done lunch. Works very well!
Good luck and enjoy!