I think NJchick78 is right with starting small. Accomplishing the small stuff first can help you with motivation. If night eating is your bane, pick a time to cut off and meet it, then lower it every couple days. Start with 9:00pm and hit it, then move it to 8:00pm and hit that, etc etc. (I had to do the same with soda, I cut myself down day by day, until it went from like 10 a day (seriously, I loved the stuff) to 8, to 6, etc etc. And now I'm trying to do the same with diet soda.)
Also, welcome to the forum, dude!