Помогите написать письмо на новый год на английском(предложений должно быть много)

Dear Santa,
I fulfilled the promise,which i gave to you in last year.I promise what i will help my mother and grandfather in general my  family. i begin hard work to give good marks.
And how are you Is much snow this year. Will cold
However i hope you understand my suggestions 
and let all my family will be happy .Until the new Year!