Answer:
Set a reasonable goal and manage expectations.
Step-by-step explanation:
"I want to change my diet so I can be healthier within the next three months" is an extremely broad goal. If we want to make this a decisive goal we can start by asking two questions, how and why.
How:
I want to eat healthier food in proper moderation by meal prepping my lunches for the week and creating a meal plan for dinner and breakfast so that I eat healthier foods.
(This states briefly what you want to do and also a means to achieve that goal. simply stating you want to do something (especially a very broad thing) in retrospect means very little)
Why:
I want to lose 15 pounds in the next 3 months so I can feel better about how I look.
(15 pounds in the next three months is a tough goal for a lot of people however, simply stating you want to be healthier is not a goal that's easy to track. Set a trackable goal such as losing X amount of weight or limiting carbs or saturated fats per day)
New Statement:
I am going to start planning my meals and meal prepping every week so that I can reach my goal weight in 3 months.