求批改作文并给出分数 满分15

Dear Health Expert(Dr.who),
I'm having a physical problem of obesity and requiring your advice.I feel weak and tired,not wanting to do anything,because I am too fat to walk easily(有点夸张了吧).I'm laughed at by my classmates,and it tortures me,which is the reason I come to you for help.
I tried to lose weight by exercising but never persisted because of lack of time.Also I attempted to curb eating,but subsequetly I would have trouble studying.On top of that,I once took some weight-reducing medicine which is effective,yet shortly afterwards I quit considering its adverse effects on body.Therefore.I would like to hear some professional advice from you.
Please help me.I'm looking forward to your reply.
Thanks.
Yours
XXX