I have a whole set of emotional problems...... so ya
Crying for silly stuff is funny.. I hate people who cry without any reasons.
"Don't cry because it over, smile because it happened" ― Dr Seuss “Sometimes crying or laughing are the only options left, and laughing feels better right now.” ― Veronica Roth, Divergent
Yes, because it is you exhibiting your frustration towards something.
Crying shows that you are in touch with your emotions and arent afraid to show it. Also, crying over something can help to relieve stress and come to terms.
"People don't cry because they are weak. It's because they've been strong for too long" -Johnny Depp
It's a sign of perseverance.
Crying shows how much you care about something, and how much it hurts when it doesn't go the way you wanted it to