谁能用英语帮我翻译“全新的旅程已然开始”和“活在自己的世界”这两句？

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a new journey has begun
live in the world you exist only.
New journey has begun ，Living in my own world
A new adventure starts.
live in my own world.
全新的旅程已然开始
completely fresh journey has set out

活在自己的世界
live in my own world

貌似是：《start of something new》
a new journey has started
live in my own world