Good luck with your possible transfer and move. It's never a bad time to start over - just take small steps in the right directions. Just stick to one goal at a time and make sure you do it. You don't have to wait to start till you move.
I found the myfitnesspal ap on my phone helped me to cut back on overeating and made me more likely to chose to eat healthier options but if you've had eating disorders in the past it might be the wrong thing for you.
It is normal to be scared by big changes, don't be afraid of making mistakes - they will happen and you can deal with them when they happen.