YOU SAID:

I am going to have so much fun on my trip.

INTO JAPANESE

私は私の旅行でとても楽しい時を過すつもりです。

BACK INTO ENGLISH

I'm going to have a lot of fun on my trip.

INTO JAPANESE

私は私の旅行で多くの楽しみを持っているつもりです。

BACK INTO ENGLISH

I'm going to have a lot of fun on my trip.