I don't see that you have anything to be sorry about. You haven't failed. Seeking help is not what a failure does. I have to agree with everyone else, don't isolate yourself. I am new here but from what I have seen so far, everyone here seems to really care. And that is what everyone needs, to be surrounded by people who care. Anti-depressants take time to start working, give yourself that time and keep reaching out. My thoughts are with you.