帮你改正几个明显的语法错误:
I will give yousome advice.
focus on
Review from time to time
fish不用复数
they are good for our brain
do some sports to improve your memory
说实话,这并不是一篇很优秀的作文,甚至连中等水平都不到。请楼主记住英文是逻辑性很强的语言,所以请多用because,so,and,这样的连接词;举例要分条first, in additon, besides, finally;写作之前请规划好三段的内容,尽量不要出现语法错误;最后,规劝楼主加强语文的学习。