In spite of all what you say, sikhee is something very different from what generally people think of it, or believe it to be.
Sikhee´s main objective is to unite the soul with the Supreme father Wahiguru Akal Purukh, through bhakti, through the regular practice of love and devotion, at His Lotus feet.
As simple as that.
Apart from that, all is paraphernalia.
You may change your outer apperance if you want, but never ever leave the door, the teachings of our Guru Sahibans, because then we may have entered the world, but at the cost of missing the chance of getting back to Him, some day.
As said, do what you want, under the frame of morality, but do always cherish love at the holy feet of Wahiguru, that is my only humble advice to you
May God bless you.