Put in a gas pedal before you try driving. A big part of learning is coordinating the throttle and shift. And don't grab the shifter like you were going to have to force it into gear. I slide her into gear with 3 fingers when it feels right. Many of the old timers used just 2 fingers. But we all grind a gear every once in a while. I have been around non synchronized boxes for 60 years. I never heard the term "crashbox" until I got on this forum.