Honestly, 99% of the time I feel like crap about not being man enough, I go out and buy some cool underwear. usually underwear, but maybe clothes, even just soap instead, something affirming. Something that I can say to myself "I am a man, so I will buy this manly thing."
If I can't go spend money at the time, then I usually draw. I know drawing isn't for everyone, but for me, drawing makes me happier almost all the time.