OP is bait but ah well...
A true man does not allow himself to be bound by concepts imposed upon him from externalities, he does as he wills, and will on no account allow concepts such as what is 'masculine' or 'feminine', which is the opinions of others with which the weak man shackles himself as a slave, bind him in their service as his subservient slave. Nor shall he allow these externalities to become internalities by allowing them a home and voice inside him.
You should read 'The Ego & It's Own' by Max Stirner.
How interesting it is that, he maintains, that whilst we have throughout history faught for freedom against people and things, we never fight against the idea that still actually shackles us? He mentions that we have faught against the idea of the priests being the sole source of wisdom and morality, to our interpretation of the book by our own perceptions, to then disregarding the book altogether but still maintaining the shackles of the idea behind it in the form of monogamy, marriage, not stealing, lying, do unto others and you yourself etc.
He goes on further to note that people will quite happily fight to free themselves from the state as is currently is, happily wanting a different political system or governance in place, but lo and behold, few if any so calling for freedom fight the notion of the state itself do they? No...such a person would by both sides be torn, rent and split asunder, then assure themselves they are free.
Then people will abide by the expectations of social morality, but whose? One may say morals differ, but he maintains as well that we never question the concept of morality itself, that some things are inherently possessing the concept of 'rightness' or 'wrongness', but do things possess these qualities themselves or do we give and attach these concepts ourselves from our own minds? or adhere to the minds of others in their morality?
Likewise in yourself OP, you maintain the idea you must be masculine, dominant, assert yourself? But where do these ideas come from? Naturally inherent a priori from yourself as intuition? Or conditioned into you a posteriori i.e. from experience and your environment? Have you considered in your speech that you echo the ideas not your own (1)? But ones in which you have taken up from others, never questions, and in so doing, slipped the shackles of duality in the form of "I must be this because it is expected of 'manliness' and I label myself 'man' and therefore must abide by the concept of manliness, to do otherwise is feminine and wrong because I am not 'female'" shackles onto your wrists as a subservient slave to the idea, the separation of concepts into the Hegelian dialectic and then that fatal flaw to believe either the thesis or antithesis itself possesses the undefinable quality of moral rightness?
If a 'man' as a concept is truly to be assertive, dominant, to control, how can he be any of these things if he subserviently has never questioned that he must adhere to these concepts, and from where they derive? How can you break your shackles and be free if you cannot see the chains that bind you? You assert you must be assertive because someone external such as peer pressure or social groupings and expectation asserts you must be assertive and you never question that this blind following is in itself not assertive? Why then do you claim that man must have the qualities of dominance, assertion, confidence and to stand firm with convictions, if the concepts of these things themselves you have never questioned, nor their source do you question and then in the same breathe claim that label 'man' which by your own admission must possess the qualities you speak of, but by your own none questioning of who and where these external expectations and idea came from nullify in the same breathe your inclusion within that label itself? How can you stand, truly dominant, individual and able to master the world externally as a 'man' if you've never questioned the foundation and source of the things you have come to believe and therefore not even mastered yourself? Know thyself....and know that I know nothing.
(1) I posited my own thought conclusions in another thread on a different subject and a user informed me my opinion exceedingly matched that of Max Stirner, who at that point I hadn't even heard of, I am surprised to have found a kindred spirit having bought and still are perusing his work.