Car died 400 miles from home, need help

After not leaving my house and staying safe in December, I decided to go and see my family for Christmas 400 miles from where I live. My car subsequently died, and I had to borrow money to pay the mechanic who tried to fix it, but ultimately it was not worth saving. My car is currently on the side of a highway in California, and I have no way of transportation. My girlfriend has upcoming surgeries, and needs a lot of doctor appointments. I am currently unemployed due to the pandemic, and an unable to get a job since my girlfriend is immunocompromised with just having had a surgery, and is about to have another one. My only income is my twitch channel.

Any help would be greatly appreciated, and I can even send a thank you note in the mail if you donate :)