假设你是Alice在Teenager Hotline 做兼职工作，主要接通一些中学打来的求助电话，并根据他们的问题提供建议。下面是你的一些电话记录，请根据以下问题给Jim写一封回信并提出建议。

I am getting fatter and fatter.My classmates are always laughing at me.

My father always smokes at home.

My best friend forget my birthday.

My father’s birthday is coming. I don’t know what to buy.

注意事项：1.尝试用不同的句型提出建议，避免从头到尾用一个句型。
2.所提建议一定要有积极意义并符合实际。
3.不少于80字。开头已给出。
Dear Jim,
I’v e known your problems.
                                                     
                                                     
                                                     
Yours
Alice