I'm thinking about beginning a new lifestyle. i am on my adventure of wanting to lose 150 lbs. what should the first step be to get where i wanna be?

Safe diet: Congratulations on wanting to get healthy. First set realistic goal for weight loss. Start with 10 to 15 lbs over a one to two month period rather than final goal in unrealistic short time. Get a balanced diet plan and moderate exercise program. Many online programs exist to help with a balanced calorie controlled diet rather than a fad or limited, unnatural diet.