用英语怎么说这段话?不要机器翻译,谢谢~

楼上的都有些地方不够好,很明显希望这些日子早点结束是虚拟语气用wish比hope好.
I am leaving tomorrow and I will stay there for about 20 days.I'll learn English when I'm back.I wish these days would pass soon,then I could see you.It is getting cold in Beijing,please take good care of yourself.I will miss you.