Change difficulty and start over or not?

So I have Green Hell on the switch, playing story mode on easy ('walk in the park') without any dangerous animals or tribesmen.

I'm quite new to gaming so that seemed to be the way to go. I've been playing for a while, got the hang of not getting poisoned or infected and am wondering if I should start over Story mode with a bit more difficulty or not. It kinda feels like I'm missing part of the experience now, but at the same time I'd have to start over with everything...

I just passed Lambda 2 and have discovered basically everything on the first map as far as I know.

Is it worth it to start over now, or might as well finish this game and then try again even though In that case i already know the whole story?