Here's another tip. When trying to achieve your goals for the day I would say relax. Maybe don't 'try too hard'. It was probably after my 5th or 6th trip that I realized that I wasn't trying way way too hard to turn. Like all my moves were exaggerated.
It definitely does get better! And great job on the weight loss! My first time I was sweating and so out of breath from trying to snowboard. And that was on the bunny hill. Keep it simple on your head and make subtle movements and really try to 'feel' what's going on instead of getting so focused on all the technical stuff.
Good Luck and Have Fun! Keep us updated!