My car kept heating up throughout the week then battery died and we replaced it and checked fluids and everything. Afterwards car wouldn’t start so naturally I took it to my mechanic for a diagnostic, after about an hour he called me that the engine blew because it didn’t have water?.. and I’d need a new engine for 6k… I don’t have 6 k so I was just going to bring it home and figure it out later. My dad is upset that the mechanic should’ve checked beforehand. What can I do?