一篇英语小作文,麻烦看一下有没有语法错误

一篇英语小作文,麻烦看一下有没有语法错误
Dear students,
I,on behalf of Students' Union,extend warm welcome to you.I am excited that we will work together in Students' Union and we will exchange with each other more and more frequently.For this reason,I'd like to put forward several suggestions sincerely that you can study and work better in Students' Union.
Firstly,you should improve your communication skills and talk confidently.It is obviously that good communication skills are necessary while you are cooperating with others.Secondly,you should set a goal and shine to fulfill you own goal.Since every one has different goals,you should set a goal,which is positive and fits you,and struggle for it.
At last,I hope you can adopt my suggestions which can help you work better in the Students' Union.
有些什么错误麻烦各位老师指出,