Nietzsche was, in my opinion, not a great philosopher and his ideas are not ideals worth striving for.
He did not go crazy, he was crazy:
"Exactly the same [personal timidity and vulnerability] may be said of him, with the less reluctance since he has not hesitated to say it of Spinoza. It is obvious that in his day-dreams he is a warrior, not a professor; all the men he admires were military. His opinion of women, like every man's, is an objectification of his own emotion towards them, which is obviously one of fear. "Forget not thy whip" but nine women out of ten would get the whip away from him, and he knew it, so he kept away from women, and soothed his wounded vanity with unkind remarks.
He condemns Christian love because he thinks it is an outcome of fear: I am afraid my neighbor may injure me, and so I assure him that I love him. If I were stronger and bolder, I should openly display the contempt for him which of course I feel. It does not occur to Nietzsche as possible that a man should genuinely feel universal love, obviously because he himself feels almost universal hatred and fear, which he would fain disguise as lordly indifference. His "noble" man who is himself in day-dreams is a being wholly devoid of sympathy, ruthless, cunning, cruel, concerned only with his own power."
Source:
Russell, B. (1947), "History of Western Philosophy and its Connection with Political and Social Circumstances from the Earliest Times to the Present Day", G. Allen & Unwin Ltd. (London), p. 794