Tiny Apartment with Father in Wheelchair- Do we cancel the holidays?

I know it's November and it's way too early to discuss this, but the holiday commercials are airing on TV all the time and it's making me sick.
My dad is an amputee. He lives with only one leg, prosthesis, and a wheelchair to walk and move. We live in a tiny apartment. This is the very last Christmas I'm going to be spending with my parents until I fly the nest after living with mom and dad for 30+ years and never lived on my own. I have failure to launch syndrome because I'm 32 years old and I've never left the family home. We sold our house because of COVID19 and my dad having cancer, we couldn't afford it anymore and our house is not wheelchair accessible. I was homeless for almost a month. The apartment is GREAT for dad, but it sucks for me because my tiny bedroom sucks, I'm basically living out of a box because there's no room for a new desk or bookshelf, my dresser is still broken and there's not even enough room to replace it with a functional armoire.
Christmas and the holidays are coming, though. Taking up the entire living room area is the couch, dad's hospital bed he needs to sleep on for his diabetes and his amputated leg from diabetes. There's also a desk by the only sliding glass door in the back, our only window, and dad is using all the plugs for lights, the hospital bed, the computer on the desk, and the TV. There is NO room for any tree- even if my mom and I were 6 feet tall and not short tiny women of 5 feet tall so we could nail a tiny tree or stars on the wall, there would be no room for any presents anywhere, because our dog would find them. Cinderella is a very cute 12 year old senior dachshund, but she is very much like a puppy and has too much energy to comprehend. She will find presents in a heartbeat if we stash them under the couch.
The kitchen is galley-sized, with a very tiny island-breakfast-bar for our dining table. My mom thought it was a terrific idea to throw our old dining table in the landfill dump and just live with no dining table. The breakfast bar is too tiny to have a full holiday meal for Thanksgiving, with what my dad wants to do, my dad is the cook in the house, he can still cook in his wheelchair, it's astounding what he can do. But there isn't even enough room for my dad to carve a 15 pound turkey and also cook all the side dishes and then serve them. There's also no place to put any tables out for any guests like my grandmother or my new boyfriend, and even with COVID19 to consider, my dad thinks we should have no guests allowed at our holiday dinner.
Dad's wheelchair-access bathroom is not big enough either because that's also where we put our laundry- there are laundry machines in the bathroom. My mom's master bedroom is also a problem because she has a chronic migraine condition just like me, and she has a gluten-almost-IBS digestive disease where she's on a strict diet to avoid getting sick to her stomach, hence why she will not put up any Christmas lights in her bedroom either. But my mom's bedroom is the only room my dad can access with his wheelchair because my bedroom is borderline claustrophobic, smaller than a college dorm (picture that), and my bedroom door is irreversibly broken and maintenance does not want to fix it, and we've tried.
There's no way we can put lights or garland anywhere, not even the bannister dad uses to go down the hall to get to his bathroom, my dad has no left knee and he's the highest risk for falls. Mom does her best in taking care of my dad and making this apartment livable, but I feel like I'm not welcome in my family's home anymore, so I should rent a hotel and live there, which is why I'm moving out in late 2021, but I promised my mom and dad we'd have one more holiday together, especially since I can't move in with my boyfriend until the Corona Virus disease is dead and nobody is getting sick with COVID anymore. My dad is high risk for death and lowest immunity from Corona Virus because of asthma, heart disease, diabetes, kidney problems, and most recently, battling cancer, and he's not 60 years old yet. I've helped a lot, but it never seems like it's ever enough.
So, if we have no room for a tree, no room for presents, or turkey, not even stockings, nothing festive for either Thanksgiving or Christmas... What can you suggest we do to have a Christmas or a holiday after all, within making room for social distancing and going along with COVID19 guidelines, because I already know none of us want to be infected?
Or do we permanently cancel Christmas and all the holidays forever? Is Christmas just another boring day like any other, just like my birthday was in 2019?