Transmission problems with codes P0846, P0868, P0733, p083b and P0842?

Van on way home from camping trip stopped and got gas, upon leaving parking lot 1st gear it seemed to lack acceleration and like no power to wheels when I pulled out about 15mph, shut off van in park, turned back on, trans stuttered bit from 1st to 2nd Nd to 3rd abit but got all the way home off highway 2hrs later and noticed through town stop and go that the transmission was not wanting to shift to 2nd or 3rd between stops CEL flipped, parked it and tried to test drive around the block 2 days later, upon starting realized a noticeable whirring kind of sound like a kids robot toy or power wheels toy coming from transmission area, if left alone it slowly die off and then come back, gets louder the more gas you give it in all gears except not really upon shifting to neutral idling, seemed like it doesn't want to engage in D or R unless you give it enough gas to get 2k to 2.5k rpms than it kicks hard into gear and gives power to wheels, rough accel and even see speedometer kind of choppy as RPMs raise, once it engages in gear if you try to barely take foot off gas to lower rpms to 1800 or so it's like it loses power to the wheels, if you do keep holding it down sometimes it shifts to 2nd if you're lucky and don't lose power to wheels like you're in a neutral gear, when it does though you get a rough shift or you get a hard kick after it normally overrevs to 3 or 4k RPMs before it kicks in 2nd hard, from the 2 times I tried to drive it this is as far as I got as I didn't want to damage it more, seems gears aren't engaging, i'm getting codes for 2 pressure switches in trans, a gear ratio code, low fluid level code and possibly a low TCM voltage code(not sure because I did remove the battery for 2 days to use it to try to trouble shoot my 15 Ram 1500 and drained the battery a bit before putting back in van) codes read are p0846 p0868 p0733 p083b and p0842, also had a weird code don't remember what it was maybe a U code or something for a front speed sensor under the ABS. Please help I just had a titanium rod in my leg from being broken and 4 ankle screws and all 3 of our vehicles are down!