Please check some very simple sentences.
Can I use the word "way" this way, "Learning English is way easier than learning Chinese"? Or what about this one, "Today I feel way better compared with yesterday"? Does the sentences sound fine at all, or you would have said them differently?
Thanks for your attention! =)

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You can use these sentences but remember they are slang/American phrases and should not be written or used in formal letters or talks. They are generally only spoken.

Still, everyone uses them.

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Learning English is way easier than learning Chinese. - correct
Today I feel way better than yesterday.