Being a man is not about external trappings or societal expectations. It's about being the best version of yourself and making a positive impact on the world around you.
That's true masculinity.
A man is disciplined. He has the self-control to delay gratification, stick to his goals, and do what needs to be done, even when he doesn't feel like it.
Sometimes when things are not going well, it's not the world that's the cause. The cause is instead that which is currently most valued, personally and subjectively.
Strengthen your muscles and mind. You can't allow one to be stronger and the other to be weak. To be a good man, you must be vulnerable, as well as wise.