Welcome to Spark People !
I give all new members one piece of advice and it's this,"Don't look at good health or weight loss with an all or nothing mentality". If the only healthy thing you did today was drink 8 glasses of water, that's still a step in the right direction. Remember, you're trying to change habits learned over a life time. That's not going to happen overnight, a week, a month or even a year. Change takes time. thus the need to be patient with yourself and your body.
Set some simple goals. Example, if you're not eating 6-9 servings of fresh fruit and veggies, set a goal to eat 2-3 servings each day for one week. If you're not drinking 8 glasses of water, set a goal to drink 2-4 glasses each day for one week. If you're not exercising, don't try to do an hour a day, set a goal to take a 30 minute walk each day for one week. Once you've achieve those goals, then you set new ones.
When someone tells me they find themselves snacking at night, the first thing I ask them is what have they been eating during the day. When a person goes on a "diet", they tend to restrict the amount of calories they eat in hopes that that will speed up their weight loss. That's not healthy. When a person restricts their calories during the day, it sets them up for a binge at night. So, if you find yourself snacking in front of the TV, what have you been eating during the day ?
As you begin to engage in healthier eating habits, you'll notice that you'll snack less at night. BUT that takes time. NO ONE ever became a healthy eater overnight. it's impossible. that's why you need to start with some simple changes first.
I would start by adding more fresh fruits and veggies to your meals. Adding more veggies will add more FIBER. eating more fiber will help keep you full for longer. Once again, don't try to do everything at once or you will end up frustrated. Slowly incorporate these changes so that over time, they will become a habit.
As far as snacking in front of the TV, you're setting yourself up for failure. TV is loaded with food commercials that entice us to eat. Studies have shown that the more hours of TV a person watches, the higher their weight. So, if you want to start losing weight, consider cutting back on your TV time. Try reading more even if it's a magazine. Get away from the TV and you'll find you're less likely to snack.
And it is okay to snack, just try to eat healthier snack options. but once again, change takes time !
Be patient with yourself and your body.