You are never too young or too mature to be so sad. Your distress is not less than somebody else's just because they seem to have been through more. No matter what triggers you, if you are hurting, your suffering is important. Regardless of how stupid or trivial you may think the reason is, if you feel down, do not be afraid or embarrassed to reach out. You do not need to prove or spell out your depression to the world in order to be cared for. Most often, silence is more dangerous than scars. If somebody says you don't look exhausted, tired or disturbed enough, please ask them to go screw themselves. Nobody gets to tell you how much heartache or agony is 'enough' for you to finally start seeking help. Do not ever be ashamed of asking for attention. Remember, your pain is valid. You are significant.