I sued Jiffy lube for neglegance, however i dont have an attorney on the case. I need to know what to expect in court.

I went to jiffy libe for a oil change, after the oil change was done i proceeded to head to work. While driving my wheel came off the car causing me to loose control and damages to my car. Later on that day i went to the ER for back and neck pain. Which i was told i had Cervical strain and ptsd