Hello & Welcome, Ecoe82!

• prolonged social isolation
• stressful school work
• job
• Father overseas

All of that can combine to beat down your emotions to a place where they don't bounce back on their own.

We cannot diagnose you. Situation permitting, you would do well to discuss what you are experiencing with a counselor or doctor. Also, here are a couple non-diagnostic screening tests:

PsychCentral Depression Quiz
Sanity Score Quiz

Please keep posting as you are able.