to 3FC!
Alana Jo gave you good advice.
I'd like to comment on something that jumped out at me in your post. You say it's been brought to your attention that you weighed 135 lbs 3 years ago. Honey, you were barely 15 years old 3 years ago. That's not a good example of what a
woman's body looks like. Don't aim for an unrealistic goal. I'm not saying you can't reach 135, maybe that's your healthy weight. But, I can say with a lot of confidence that you won't look like you did at 14. You are going to change so very much over the next 3 years. You need to focus on being healthy and in doing that your body will settle into a weight that's comfortable for it. Eat right - lots of veggies and fruit, lean meats, whole grains, very little processed sugars, healthier fats (nuts, avacados, olive oil, etc.) - exercise regularly - don't go nuts, but 30-60 minutes of cardio/strength training 5 days per week will get you fit - you'll end up at a healthy weight.
I can't impress on you enough how much you're going to change over the next few years, emotionally, physically, mentally. It's said that women change the most between 18 and 21 and men change the most between 21 and 24. It's good change, and you will develop into the woman you're meant to be. Don't become obessed about your body. It doesn't sound like you are, which is a good thing. But, always remember that you are much more than what you weigh.
Eat right, exercise, focus on developing into a healthy, vibrant woman. You won't go wrong.