Hi Tedda
From the sounds if it, you probably lack the speed and ability in order to pass these sections.
It is perfectly natural so don't worry about it and focus on how you can pass these sections; either by playing higher bpm maps (doubletime!?) or more maps similar to what you struggle with but at a lower difficulty so you can slowly get more acclimated to fcing fast jumps. I personally wouldn't retry the same maps/sections over and over however; this will probably do more harm than good.
It won't happen overnight but keep at it and one day you will play the same map and wonder what was so hard!
From the sounds if it, you probably lack the speed and ability in order to pass these sections.
It is perfectly natural so don't worry about it and focus on how you can pass these sections; either by playing higher bpm maps (doubletime!?) or more maps similar to what you struggle with but at a lower difficulty so you can slowly get more acclimated to fcing fast jumps. I personally wouldn't retry the same maps/sections over and over however; this will probably do more harm than good.
It won't happen overnight but keep at it and one day you will play the same map and wonder what was so hard!