I want to become an NCO in the National Guard. What should I do in my career to do so?

Not only pass, but excel at your APFT. Pass height/weight. Do SSD1. Pass BLC.

You're infantry, promotions come fast. If you exceed the standards on the basics, you'll make SGT. For SSG, again, check the blocks you must and add in college credit and attend any and all military schools you can.

I've seen guys get in and make SSG in 5 years in the guard that were infantry. It's a wide open field due to the attrition rate.

Go active

I would say do what you are suppose to do and try to get out of the NG and go active.

A few starters. Focus on the basics, get educated (military and civilian), connect with those sections/people that can help you (S-1, supply, fellow and senior NCOs, etc). Be the EXAMPLE!

SSD and BLC (WLC). Show your current leadership that you deserve to lead. ie. PT, job performance, etc