I think the original poster is easy to empathize with.
Supporting a family in your late teens or early twenties is no small task. Yes, professional pilots are required to balance work and life. Students pilots have to balance work, life and training to be a pilot. I’d argue the original poster may not ever experience that same amount of stress.
The other thing the OP has going is that they went to ATP. Anyone in the industry knows ATP is famous for failed check rides and that the busts don’t necessarily show a lack of aptitude. It just deepens an already known perception that ATP sends people to checkrides they aren’t always ready for.
If he can get his application past the computers and into the hands of a recruiter, I think he stands a good chance at doing well at an interview as long as he knows his stuff and takes the advice already given here