Climbing takes practice- but even with practice some of us never get good at hills- they just improve.

I have no worries about telling my partners- "I'll see you at the top". I go at my pace to keep the cadence right for the legs and the breathing up to a discomfort level.

Only thing I never do is stop for a breather at the top of a hill. I ride over the top to stop the lactic build up- and so as not to show my mates how shattered I am.