2014 1.4 LT Turbo

Car Turns On. idles at 800-900RPM. Gives LOTS of codes. i removed the intake manifold during maintenance and unplugged the Battery first then the MAF, MAP, Coolant Temp Sensor, Boost Solenoid, Boost Pressure Sensor, Both Cam Sensors And o2 sensor.
Now it’s giving codes

P00EA, P0236, P0237, P0238, P2227, P0135, P0131, P0068.

While Driving and i accel fast my dash says:

Engine Power Reduced
Service Traction Control
Service Stabilitrak

Then goes completely limp until i restart the car

While going uphill i have to push to 6000RPM just to make it up a hill.

WTAF is going on :(

I have a 2014 Chevy Cruze and whenever I get somewhere around the below half way mark of gas my check engine light will come on a present me with a knock combustion blah blah blah code, but when I put any amount of gas in it (I been using 87) it goes away and comes back when it gets low again. The engine has the word turbo on it and I heard mixed answers some saying turbo engine needs premium gas and others saying it doesn’t matter and I should use 87?

I have my first car and it’s a 2016 Chevy Cruze I got it in August at 87 or 88k miles I now have almost 90k miles. Everyone has been saying these cars are bad and I’m just nervous if I made a mistake but it has been reliable with no issues. Just wondering if it’s a reliable car as long as I keep up on maintenance , it’s a monthly car payment so yeah. Maybe people are fear mongering I don’t know

^{I think old unreliable is giving up, today i ran out of coolant so i put some more forgot to put the lid back on, i drive for a few mins and the engine overheating came on, i pulled over popped the hood, saw the cap was off, and refilled my remaining coolant. I drive a bit more and it comes right back on and then a check oil level came on, i pulled over saw white smoke coming from the hood, opened the hood, and saw my coolant dripping out.. it was either white steam or oil, additionally when i took out the oil dip stick i saw the white steam/ burned oil just swooping away in the engine, could a head gasket, or valve gasket, or is my engine just fucked, and i need a new one bc the engine in a 1.4L turbo my cars manual said to use 87 but dont turbos need 93. anyways i think hold white is a goner}