Especially at this age, it's really common for people to have experienced or are experiencing heartbreak. It might sound cliche and silly, but it truly is one of the most painful things you can go through while being so young. It's important to know that things can and will always get better no matter how bad it hurts you at first.
When you're going through something, your first instinct is usually to push everyone away from you so that you don't have to talk about or deal with the things going on. This is honestly probably the worst thing that you can do for yourself. Step one to getting better and feeling better is to surround yourself with friends and family who lift you up and make you feel like the better version of yourself. Rather than staying in and reminiscing on the one who hurt you, go out with your friends and show yourself a good time without having all of the heavy weight of hurt on your shoulders.
One of the main things you need to focus on when you're hurting is your health. Exercising is actually scientifically proven to reduce your amount of stress. Not only will you feel better about yourself, but you will also be able to take your mind off of things, even if it is only for a little while. A lot of people turn away from food and stop taking care of themselves when they're going through a heartbreak, but trust me, that is not the way to cope with your feelings.
Before you can ever love anyone else, you have to choose to love yourself first. Embrace being alone with your thoughts and with your dreams because that is how you will learn more about who you are as a person. You will learn so much and end up falling in love with yourself for once. No one can possibly know you better than you. If you do all of these things, then one day, when the right person comes along, you will be ready for them and all that they have to offer you.