I looked up rewarding on Google translate and it was enrichissant?????
Freeform Writing Exercise A1
If you mean "rewarding" in the sense of a pleasant feeling that makes you feel rewarded, you would probably use gratifiant. There are usually several options to translate any word. Google only gives you one. It's not guaranteed to be the proper one for what you want to say. It's better to use an online dictionary for that.
Enrichissant is perfectly applicable in this context.
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