It sounds like you have gone through the trauma of emotional abuse. Have you gotten an official diagnosis from a psychiatrist or psychologist? It sounds like you need counseling to work though the issues.
It is NOT your fault that you feel this way. Most people who have gone through abuse blame themselves. You are not to blame. It is now your responsibility as an adult, however, to start caring for yourself emotionally and filling yourself with positive thoughts and positive actions. Start counseling, start an exercise program, do some art or music, get in a support group, find friends you can talk to that you trust, join a church or other supportive organization, etc, just to name a few ideas (if you aren't doing them already).
Your family sounds like the problem, not you. You may not have any serious mental problems after all, except surviving abuse. But if you feel a great amount of distress, you need to see a psychologist or psychiatrist ASAP to get a formal diagnosis.
HUGS!!
__________________
...Out of night and alarm
Out of terrible dreams
Reach me your hand!
This is the meaning that we suffered in sleep:
The white peace of the waking.
~Edna St. Vincent Millay, "Song of the Nations"~
Diagnoses: Bipolar 2, OCD, Chronic Worrywart

Meds: Lithium (reducing), Trileptal, Latuda, Risperdal, Klonopin and Xanax PRN