My car story kind of funny lessons

My intent is to be an active member until my car gets buried at the salvage yard. I bought a 99 crown vic and have done a few projects with 0 car experience, and I'm contemplating buying another one. I've replaced the fuel filter, air filter, serp belt, idler pulley, pcv valve, and managed to install a light bulb so I can see! My next project is fixing the a/c because the blower resistor and pigtails died. I installed the blower resistor and hoped it would be enough to solve the problem, but nope now it just struggles to cough out air now.

I tried to do an oil change and tried physically squeezing underneath the vehicle, yeah smarts right, and that failed, so I returned the oil I purchased from o'reillys and had walmart do it.