please help me fix my car so I can get my son chemo

hello!

my name is janie. my son marquis was diagnosed with Osteosarcoma, a rare form of bone cancer in July 2022. he relapsed with osteosarcoma in May 2023 and It has now spread to his lungs. liver and pelvis. marquis is currently receiving Chemo at texas childrens hospital in Houston which is 98 miles from our house in beaumont texas. Last week my cars transmission went out and I have no money for a new one. I am relying on my car to get marquis to all his medical appointments in Houston in order for him to live! I'm a single mom of 4 and I need help PLEASE!!!! Without a car we will have such a hard time getting around. I have no family here and really not alot of friends. His dad hasn't helped us at all. please help us!