I have no issues with your oil change,but I do it somewhat different. I have a 2014 Corolla they do not have that plastic cover under the car like that 2020 does. I would consider leaving that off. I recommend car ramps they are not expensive and save a lot of work over jacking up the car. I also use a Fumoto drain valve, saves work, less messy,and it stays in so you don`t have to worry about plug tension or changing the plug washer or stripping threads.