Men Tend to Conceal Feelings of Pain and Struggle Alone
For a time, this suppression might offer a facade of control. However, these powerful and unpleasant emotions don't simply vanish. Eventually, the pressure builds, and they erupt in overwhelming rage, despair, or a crushing sense of hopelessness."
Replaced "work for a while" with "offer a facade of control" for a stronger image.
Used "suppression" instead of "concealing" for a more clinical term.
Replaced "all these powerful and unpleasant feelings" with "they" to improve flow.
Added "crushing" before "sense of hopelessness" for emphasis.