what can i do to improve my spoken English?

you can listen to some English songs and watch some English movies to improve your English-speaking skills .
Then you may meet into some difficult but necessary words ,after knowing how to spell them and write them ,you can look up these words in your dictionary ,then remember them .
By doing these,you can know more difficult words which you can't remember well in normal learning ways
The third ,you could ask your teacher for help ,teachers have more knowledge than us
Hope my advice helpful to you!

You should be bold enough and have the courage to talk about something. You should talk more with others.

Read more, speak more.

你得说怎莫改

Very easy.Find a good English speaker and practise your oral English with him or her.

You can try to speak more English,and listen more、practice more,hope you can improve your English