Honestly being you is the most important part of making friends. You need to understand not everyone will like you, and that's fine. Not everyone likes the same food. But, what you need to learn is that others will take the time to get to know you as the person you are. So, be ready to accept them with open arms. Don't be afraid to take risks and just apply yourself.
When you get to high school, it can seem like it's hard to make new friends because everyone already knows each other. However, it's never too late to expand your circle of friends. Start by taking steps to meet new people that you might have something in common with. When you come across someone you like, strike up a friendly conversation and see where it goes!