youre not the only one who messes up a bid.
I lost 35grand on a project we were doing before I pulled the plug. The "allure" of a 99grand contract was high, but challenges on site made a 3 week project run to 2 months, I ran some numbers and told the crew stop going there!
dont feel bad tho. I sucessfully did an 85grand contract last week. You can bounce back just as easy as that.
learn to watch your numbers like a hawk. Youve got a bid youve got to work with that. if the numbers start looking horrible, abandon ship and throw it to your lawyer