That might help calm you regarding the clear film you removed that was covering the incision. You probably know the signs of infection if that happens, which probably won't. Just don't touch the area and maybe take sponge baths rather than actual baths or showers until the skin starts to heal. If it were me, I'd call the doctor's office and ask them to have a nurse call you regarding the removal of that film over the incision.
That might lower your stress a bit.
As to the other worries, yeah, they are real, and I have some too, at 70+. Cost of living going up but SS not going up is a concern. Also, mad as hell the most of the inflation is actually corporate greed and perhaps even corporate action to piss off consumers so more might vote GOP. I can't control that, except to try to raise people's awareness about the actual cause of the inflation we have had SINCE 2019.
Re gas, pretty sure that is normal after any abdominal surgery. Thinking back to something I read years ago, there will be some air getting into one abdominal cavity, either by design to make the surgery easier for the doctors, or just the fact that the abdomen is open for a while. Gas takes time to get thru tissue and into the organs that can expel it.
If your gallbladder was not the root problem, it is your doctor who is responsible for how best to precede. The doctor will figure it our, explain it to you, and help you decide how to proceed. It's not on you alone and not a 'right this very minute' sort of decision.
Breathe and remind yourself that you do not have to solve everything this very minute. As far as possible for you right after your surgery, find AND DO something that you like. When going thru a horrible time in my life, a counselor told me to make a list of 5 things I enjoy, and then do at least one a day.
A 5 item list sounds easy, to people who are not in panic mode or who are stuck in depression, but it can be damned difficult when you are in a bad state of mind. But it comes along, and with the practice of actually doing simple things you like, such as reading a good book, listening to music, sitting outside and noticing all the different sounds, just being in the moment, well, soon you will find yourself adding to the list of things you like. Simple things mean a lot when you are in the moment enough to actually EXPERIENCE the good. Simple good things can really start to multiply.
I wish you healing, calming, and understanding that YOU CAN & WILL feel better. Walking thru personal darkness is hell, I know, believe, me I know! But you can get thru it, then you get to be a light bearer, holding your lamp of survival up so some other person, lost in a dark tunnel, can see there is hope and success at getting beyond the tunnel. I predict YOU will be a great light bearer, and maybe even sooner than you think.