How can one get rid of the characteristic of resembling men, and what is the ruling on that, and could its cause be an increase in male hormones?

You must stop intentionally imitating men in dress, gait, speech, and actions, as this is among the definitively forbidden acts. You must make an effort to abandon imitating men, even if you naturally have an excess of male hormones. Rather, intentionally go against their state, attire, and appearance. For the Messenger of Allah, peace and blessings be upon him, cursed women who imitate men. A naturally effeminate person is not to be blamed unless they are unable to stop swaying and breaking in their walk and speech after undergoing treatment; otherwise, they would be blameworthy. What you must do is stop imitating men and consult a trusted female doctor to examine and treat your male hormones.