Job Search: When to Not Apply

I was looking at jobs and construction caught my eye. I want to be  civil engineer because I like working with my hands, being outdoors, and using my education in science and people to solve problems and create. 

I realized that if I were to become a construction worker I would have to be a full time apprentice or something similar. I would be going in a direction away from my desired degree. I believe that as soon as you realize that the deal is not great, you should walk away. 

I now believe I should start sending inquiries to schools about my second degree. 

Don't be afraid to walk away if there is a better way in a different direction.