One of the most important things to keep in mind when trying to reach a fitness goal is to stay consistent - with both diet and exercise!
It takes time and patience, but the results are so rewarding.
Don't make it feel like a chore, but instead, make it a lifestyle! Good health is something you want for life, not just for summer months. Keeping consistent will keep you from drastic yo-yoing. You won't have to stress shedding for the summer, a wedding, vacation, and more! Your body will treat you much better if you keep up with it!