No offence, but this whole post just sounds like one massive excuse. You continue to iterate the fact that you're a "good person" and "it was just the alcohol". No, YOU did it, suck it up and take the blame for YOUR actions. Evidentially you're not a good person if you're being convicted for armed robbery and assualt (and are obviously guilty) so how about you work on changing yourself instead of pointing the finger at everything else.
Unfortunately, from what I've heard, jail doesn't exactly change people for the better so if you do go I wish you the best of luck and to stay strong.