Car is overheating with smoke after driving 2-4 miles and AC/heater not working?

What is your question?

I'm 62 on SSA disability supporting my 2 sons who are looking for work. I NEED my car, don't have $$ to fix it & denied small personal loan to get it repaired. I'm high risk & I don't know who to ask for help, I HAVE to humble myself by asking strangers what I can do to fix my car. It has 85,000 miles & I know it'll last up to 200,000 if I can get it fixed. It was stolen in May, filed report with sheriff's office, it was found BUT since returned to me was overheating & more. I changed the oil & discovered radiator fluid is rusty color. I bought coolant, needs to be flushed first? I'm worried how bad its damaged engine, have to drive for food 2 miles away. I used heater to keep it from overheating, now don't have heat or AC, the switch only blows air through vents on highest setting (5).Overheats, engine fans stopped & it's steam/smoking with smell. Am I able to fix it myself? I need a miracle. Have no family but my sons & we've never worked on car repairs. Please, anyone help us? Dee

What makes this problem better or worse?

Idling

How long has your 2003 Chevrolet Impala had this problem?

Increased over 4 months. Drive only for food & medical