Originally Posted by Utah

If I read the OP correctly you have a total of three failed checkrides and only 800hrs, and weren't invited to any interviews. You just have to keep getting more hours and don't fail anymore checkrides. Instruct for another year and get an ATP on your own, if something else doesn't come along before then.

At this point the airlines are looking for someone they think will make it through their training program. The three failures stand out too much.