If I could write a letter to my younger self, I would say to stop worrying about others think about me, be my best self. Keep trying and fighting and that I will make it through all problems with perseverance and trust in myself . I would also include to try to learn to love myself, and that I have people who love me.
You are welcome, thank you for such a thoughtful question

That is a great letter to write to yourself Dawn. It is gives you reassurance and motivation. Thanks so much for your answer.