Lol if we cannot cut our hair, why do we cut our fingernails/pull our teeth out?? I understand the 5 K's and one is "Kesh" and I do follow what the guruji said but kesh technically is the hair on your head and not armpit hair or other body hair neccisarily.
Kamala ji, you can always find some technicality/ excuse to do what you want to do. Sikhi is not about technicalities and legalisms. If you understand the purposes of keeping kesh, you will also understand why most of us believe that means keeping all the hairs on our body unshorn.
For men, the most troublesome hair is the unshorn kesh on the scalp and also the unshorn beard. For us ladies, it is legs and armpits and eyebrows. (There is some dispute about facial hairs on women. I am of the school that says to leave them alone, but there are good arguments on both sides.) We are all called upon to do some things that are socially difficult; that is part of being Sikh. Some accept the challenge. Some do not.
I hope that you are strong enough to keep all your hairs, if keeping kesh is meaningful to you. If keeping kesh is not meaningful to you, I hope it becomes so. With your inquiring mind and willingness to learn, I believe that someday you would make a fine Khalsa.