if your new to this kinda platform combat the best advice i can give you is take things slow, less beatdown and more counteratack as some foes like the tanuki have long attack animations, get behind em on windup where possable, hit with a heavy repeat.THIS GAME IS LITERALLY TOO FUCKING HARD
as for bosses... yeah they are a clusterfuck thanks to the stamina system mostly, best i can tel you on them is try your best not to over extend. a warning this playstyle causes extreme bordom.
some frendly tips if your low on health and cash grind at eden lab a few of the foes there are jobbers the cat people and the flys. once you get the hang of it the only other foe i think that would give you trouble is the portal mage in the garden mostly due to how their attack works stop and its attack does too but its mostly a trap that works if your rushing or unaware. hope some of this is helpful.