Freckles have long been thought of as beauty marks! You are beautiful and you need to believe that. Ignoring the bullies won't make them go away. You need help to deal with them but just know that you are not alone. Getting rid of your freckles which isn't really possible without expensive procedures won't make them stop either. likely no matter what you do they will find a way to bug you and hurt you. You need to accept that they are a part of you and something that is uniquely you. You are very pretty and covering them up or trying to change who you are just for other people won't make you happy either. Just be you, freckles and all! You can reduce how many new ones you get by staying out of the sun, wearing sunblock and light but protective clothing every time you go out. The less sun damage less will appear.
I used to have some freckles but over the last 16 years most of mine have disappeared unless I get sun damage. Unfortunately I have photosensitivity and in the sun this past summer I had a whole lot of new ones form on my skin. I also used to be tortured in school, bullied to the point that I would come home crying every day and I didn't want to go to school anymore. No matter what I did I was never really accepted by other kids. It was cruel and heartless and it was a horrible time for me growing up. I am telling you this so that you know it can get better and that you need to love yourself and get help for it. By your parents, siblings, friends, teachers, counsellors and even therapists. This is the time that you should seek help. Don't wait till you are desperate.
We don't know each other obviously but I can see a lot of what happened to me happening to you and I will be glad to listen if you need an ear or a sounding board! As will most of our community here! Here you are accepted and supported!
Good luck!