YOU SAID:

I like to challenge myself

INTO JAPANESE

私は自分自身に挑戦したいです。

BACK INTO ENGLISH

I want to challenge myself.

INTO JAPANESE

私は自分自身に挑戦したいと思います。

BACK INTO ENGLISH

I think I want to challenge myself.

INTO JAPANESE

私は自分自身に挑戦したいと思います。

BACK INTO ENGLISH

I think I want to challenge myself.