帮忙写下英语作文呗 have a problem 150字左右

I had a problem because I failed another English test, I tried my best , but I still couldn’t get good grades. It’s hard for me to memorize English words. I have a lots of difficulties with the grammar .Since I am afraid of speaking English in class .I know studying English well is very important , so I don’t want to give it up .How do you study English ? Can you give me some advice? To be honest, i really want to master English as fluently as native speakers. But, my level does not allow me to do so.