SD, you're currently operating in an "adrenaline rush" kind of reaction. You're feeling good because things ARE going your way.
There is a usually a kickback to a low before your feelings stabilize. Be prepared for it. I know you're staying with a friend. Ask him to look out for you when it happens.
Earlier you asked what else you could do... start building your support group. Friends and family who will be able to "pick you up."
Also start reading through other people's situations and old threads. See how their moods fluctuate. Be prepared for the battle that's going to rage in your mind.
