What do I need to do Im Trying to lose weight Im 18 5'10 and weigh 158 I want to weigh 150 I am counting Calories and today I ate 1400 and Burnt 400 calories running is that good?

That is good, but not enough to lose about 10 lbs. To lose weight, you need to be birning around 3000 calories more than you consume a day. While you do burn some by just your body working and by walking around, it is not that significant. 1400 calories is a pretty good diet plan, but trying to lower it by even 100 calories more can make losing weight go faster. (Try something simple, like leaving the milk out of coffee or drinking a Diet Soda instead of regualr or skipping the cheese on a sandwich or leaving off the dressing from a salad. Each of these along can save you around 100 calories or more just by themselves.) Also, try doing something that burns even mroe calories. After running, do some exercises to slowly cool down. You will burn lots of calories as your body continues to move, but won't feel as strenous.