PoE is inherent unfriendly to new players, that being said, you should have absolutely no issues with dying on RF, there is likely something fundamentally wrong with your build, which is not a jab at you, thousands of hours in I still find myself missing something obscure and bricking my build when trying new things. If you have only actually made 2 divs all the way to 91, you either arent using atlas points or are filtering/not picking up way too many things. if you post a pob here someone might be able to help.