I'm sure your lawyer IN Singapore, who is familiar with LOCAL law, and the particulars of YOUR case, is in a much better position to tell you what to expect, than strangers on the internet would. Doncha think? I'd go with his advice.
However, didn't they cain that American dude bloody a few years ago? I think they did. I don't think they like American lawbreakers over there, and I think you're in a whole lotta trouble. Not only do I think your employer is going to find out, I think they're going to put you in a cell with Bubbette.
I also don't think they care much about your mental problems. Actually, maybe their insane asylums are worse than their jails. Nahhh, I don't think I would say anything about that.