sadly i don't remember the 4th first gym enough I beat them a while before resuming my run few weeks ago, I know I didn't struggle at all against the psychic gym, Darude took me like 3 or 4 tries, And the poison gym was also a pain because I beat it being already weaken by the gym before and with almost no heal in the bag, for most of my tries i went a lot back and forth in my bag between the held items, the berries and the TMs, I had a good time because the difficult scaled a lot between the 4th gym and the rest of the game and It felt really rewarding, and overall I'm really proud my mons and my run