When you translate your English name into Chinese, lots of dictionary websites will show the Cinese——特雷弗. But the world——特雷弗 is a very strange Chinese name. I don't think there is any parent will choose this Chinese name——特雷弗 for their childen in China.
So I recommend you a better Chinese name .That is 曲阜(qu1 fu4).The reason that I recommend the word——曲阜(qu1 fu4) as your Chinese name.It's not just the pronunciation of 曲阜(qū fù) is similar to Trevor, but the word——曲阜(qū fù) is also significative.
It is because the word 曲阜(qu1 fu4) is aslo a name of a famous city in China. 曲阜(qu1 fu4) is best known as the hometown of Confucius, who is traditionally believed to have been born at nearby Mount Ni.
This is wiki link that introduce 曲阜(qu1 fu4).
https://en.wikipedia.org/wiki/Qufu
If you want to use Chinese to introduce youself.You can say
Hello! My name is 'Trevor'.
你好!我的名字叫'曲阜'。
你(ni2) 好(hao3) !我wo3 的de 名ming2 字zi 叫jiao4 曲qu1 阜fu4。
(The pinyin that does not have number after them, pronounced them flatly without any intonation. Sometimes it's just slightly softer than first tone.)
I hope this answer can help you.