Freckles are natural, even if there are a great number of them.
There are other people who have issues as well.
Those with a Port Wine Stain would have had a very hard time at school as well.
I will assume you have looked at treatments. Here is some information.
Sunscreen everyday to reduce the amount of new freckles.

https://www.healthline.com/health/beauty-skin-care/how-to-get-rid-of-freckles#takeaway