Very excited about my changes

Last week from Monday to Friday I lost 3.4 pounds. This week I have been treadmilling, and exercising. It feels good when I am finished. I have been keeping track of my water, fruit, veggies, and dairy. I am keeping track of my points, but it feels like in the evening I get off track of counting a bit. During the day I count just fine. I do find myself snacking a bit at night as well. Last night I was good. I did not snack, and I think I only had 1 diet soda all day. I am super excited but need to get moving. I really do want to be able to run one day.