Dear Mark,
How's it going?I'm sorry to hear thatyou have some problems learning Engli-sh .You say you cann't prounce some of the words. And you often make mistak-es in grammer.Here two good ways for y-ou to improve your English.
First,I think you should listen more English song.It can help you increase s-peaking and listening.And you can look up the works.Next,you can memorize thegrammer and take note in class or after class.You also can by your intereting thi-ng learn English.I think you will underte-nd more than your think.
I know English is so difficult,so you need to hard.English is too improten for we.We neet to learn well for it.