You need to work on your weaknesses.
If a slight climb means you lost, you need to do something about it.
Just like I learned how to overcome my weakness in the flats and descends, you need to overcome your wekness in the hills.
I'll admit it, I'm weak and chances are I will never reach 300W FTP.
You may ask how do I survive in the flats, especialy in breakaways?
Massive drag reduction, never creating a useable draft for anyone by tucking in to reduce frontal area while having an awesome draft behind even the smaller and tucked in riders.
Even when drafting me in the flats, other riders have to match me watt for watt now while I can rest very well behind them.
If you are so strong in the flats, why not lure the climbers into a breakaway at a pace they can't sustain to wear them out and hitting the climb much fresher than them?
What wears me out is pulling long, not pulling hard.
I can always rest sufficiently between pulls since I disappear behind other riders, reducing my aerodynamic drag to nearly zero.
When pulling I have to work way harder than I can sustain, I can only do that for short intervalls with enough time to rest.
As soon as my pulls get longer, I'm basicly fucked, but I won't tell you.
However the rider behind me doesn't get to rest nearly as much as I do, my narrow frame and short legs won't give 99% of riders a useable draft.
Especialy when pulling up a hill, he sometimes needs to push a lot more watts than I do at 55 kg (probably soon less).