@Ski Gal Welcome to BoneSmart
You've come to the best place to get support and great information about joint replacements. YES there are quite a few of us here who have had bilateral hip replacements -- mine are 7.5 years old and I am VERY glad I did it that way
One of our lovely, helpful admins will be along shortly to give you some suggestions for reading here. You can also go over to the recovery side and look for green bilateral tags - click on any such tag and you'll get a list of all the bilateral threads. Feel free to read any/all! Link to my threads in my signature though it is old and has not been updated in quite a while.
It's good you are going to have some one stay with you for a while after surgery - I had my cousin with me for about 10 days and that worked well. I did manage just fine once she left. Be sure to ask your surgeon if there will be hip precautions after surgery (those usually only apply for 6-8 weeks - some surgeons do insist on them, others do not).
Prepare before surgery - stock up on comfort food, easy to fix meals, snacks, etc. Get grabbers as you will probably not be able to (hip precautions) or want to (stiffness and incision pain) bend over for a while. Practice getting into bed and car by lifting both legs at the same time -- I did that a lot before surgery as it hurt less than doing one at a time and it really helped afterwards.
If you have the space and resources it might be helpful to rent a hospital bed for a while - I rented one for about 3n months and it was great! Made it super easy to elevate legs, get into and out of bed, and was not too expensive (about $75/month as I recall). Or get a reclining chair if you do not already have one - though ones you have to close the foot rest by shutting with your legs would not be a good idea! Get one with either electric controls or a lever on the side to open/close it.
The first time you stand after BTHR will be a revelation!!! Arthritis pain is gone
BUT hips and legs will probably feel like each weighs about 100lbs and are made of concrete -- aka "log legs". Don't worry - this sensation goes away fairly quickly. Hospital staff will make sure you can manage most routine activities before you go home - including climbing stairs, getting into and out of car, getting dressed, managing hygiene, etc. AND they will make sure your pain management routine is working properly. These days most folks only stay in hospital for a day or 2 - though some stay a bit longer.
Best of luck to you with your upcoming BTHR