I figured that out and i kept getting hit after healing as the healing is a bit long but a suggestion i would make is buffing the wooden sword as the whip is faster and a longer range and i quickly found myself never using the wooden sword and it puts you in range for the idle damage of the enemies weapons which isn't wanted for such a fast paced game unless it's a challenge run kind of thing.
Oh yea don't shorten healing times unless it's an item as it's a risk reward thing.