Gear sticking and revving up and driving loud

Vehicle is a GLk350. I got the car 3 months ago to start to just get auto loan history on my credit to add more mixed payment history. Anyways, after a little less the a month I got an Aux malfunction on my car and was told I don’t really need it by auto places. I also took it in for the almost nearing 100,000 mile mark to get fluids topped off, tire rotation and new spark plugs and oil change at Big O Tires. When I went back in told me I needed rear breaks so got that done too. They also said, you don’t really need that back aux battery. I kept driving seemed like lights were dimming arrows in my glass side mirrors disappeared and and eco boost would sometimes work. It then started running a little louder and rougher and revving up at odd times and then go down. My car then shut off and I jumped it made an appointment shut off again and took forever to jump until I finally revved up and went. Took it to Batteries plus where I got the Duracell battery for my make and model and got back battery online. After that lights were brighter but still no mirror arrows and was still acting up with shifting and sticking in gear. Went to a few other places they used basic code readers didn’t get anything looked over it said it sounds good. One guy drove it with me he’s like it does seem like it’s running like a Honda almost. He looked over stuff said I might need a new transmission felt like that was wrong and continued on. Aux battery came on again and eco seems to work on and off I tried doing battery reset and tans reset and seemed like it was a temporary fix and would go back to on and off sometimes revving up high when I started and going back down and sounding a little thunky when I used gear selector to back up and that’s always when I know it was going to act funny with sticking gears and revving up and running hard before it would finally go back down. I found this place recently that had top line fault reader and then got all these codes that were basically computers like bus, sam, system control issues basically having a problem connecting with each other. Also gear selector lever not communicating. They said I need all these things, but the car runs normal and then crazy where it’s like confused at times and I’m just wondering if there is a general solution to this or if all my computers are going bad or something. Below I attached codes. Sorry, for the story book but I can’t seem to find somebody I feel has the right answer without saying quickly, that it’s fine just adapt to driving or the exact opposite of a bunch of things need replaced. Below I attached code pictures. Thanks!