My feelings about today

I didn't overeat today, or so it seems.  I do eat a lot of pasta and less fruits and vegetables.  I need to lose weight and change my eating habits.  I gained nearly all of my weight back.  I need to start over and not allow myself to become frustrated.  I have plenty of reasons, or rather, motivations to lose weight.  I don't know if I should approach this slowly or if I just "dive in".