Im playing the game and I can figure out how to get a heart that's on the second sister (the one left after unlocking the first 2) on top of some sort of bridge cause there's a huge insect that keeps grabbing me and killing me and I doing something wrong??

Find a secluded spot and wait around a bit, that way the pangolin will eat some of the things hopping about, when it starts eating one you should be safe to grab the heart.
I helps to wait a bit longer because more hopping things get eaten that way.

Strange I always managed to run by and grab the heart without the pangolin grabbing me.
But if you try that you could use the haste glyph. Also there should be a second heart in the same chamber. Left from the start I believe inside one of the trees.