Should I quit my job to focus on training?

No. See this video for a detailed explanation.

Hey Cones! Today I'm addressing a question I am asked quite often. If you've thought about really taking the time to focus solely on training before you enter the military and quitting your job, this video is for you. How do you train to be tougher?
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As a kid that just came out of High School, is it a good idea to go straight into the military, or should I wait and keep training to get stronger/faster?