As an extrovert in school and a speaker-loving speaker, here are some suggestions for you:
You can be bold and participate in various speech contests, but you don’t necessarily have to have good results. It is mainly an opportunity to exercise your courage and expressive skills. Write your speech in advance. If you don't speak fluently, just memorize it fluently. Endorse the General Assembly. Speech is not a debate. Sometimes quick thinking and reaction skills are not required. Speech is a platform for you to show yourself personally.
Secondly, make more friends, and it is not that difficult to deal with and communicate with people. If you don’t know what to say, you just can’t get in the conversation. Understand the current affairs of the country, entertainment trends, astronomy, geography, etc., enrich your knowledge, increase the number of topics, and let you have something to say no matter what they say.
Express your opinions actively and don’t say you have no opinions. You can simply talk about your thoughts on anything. What you need is a communication platform. Know what you want to express, think about it before you say it.