Took a while but I did it :D
I had first reached the end in half the time, but I was confused since I hadn’t explored all the areas yet. I got stuck on the last 3 coins and went back to the end, on to discover the heart. Then I found the secret ground pound that I missed, so then I only needed one more coin (which was the one on that you need the plant for at the top left and with two stones). That one took a while as I didn’t realize there were button doors. When I figured that out it was pretty easy lol.