Life's little dissapointments

You know how it goes. You have plans. Nice ones. They are set in stone. Then BAM! The stone gets crushed. Let me explain. A couple of weeks ago my Aunt and Uncle invited my family and I to go to The Smokey Mountains with them. This is something I have wanted to do for quite sometimes. So I'm majorly excited. My children are majorly excited even though they really have no clue what is really waiting for them. They just know that they are going to get to leave this tiny town to do something exciting. My husband is excited to be leaving town to and to be the one to show me the beauty of this area. And my dad, who's birthday is the same weekend was really excited. This could be his last birthday as he suffers from Gliosarcoma, a rare and aggressive form of brain cancer. Medial survival time is 9 months. Two year survival rate is 9 percent. So this trip was really important for many reasons. And we were scheduled to leave early Friday morning. This afternoon, we were informed that the trip was off due to circumstances beyond their control ( my aunt and uncle's that is). So now everyone is disappointed. My aunt, my uncle, cousin, dad, husband and children. All because of some stupid unknown prick who wanted to cause trouble. And for those of you who are bipolar or love a bipolar, you know that disappointment goes to a whole new level. For me it brings out feelings of anger and depression. Instead of seeing the fact that we can probably reschedule, I see that were not getting to do something that I (because of other mental issues) had to work myself up to. As much as I have always wanted to go, my fears and paranoia's now keep me from wanting to leave the house. But the weather was suppose to be good, so that took away one of my fears and we would be traveling back roads which means less of a chance of wrecking at high speeds. So I was ready for it. Not it's been cancelled and I'm angry and depressed and irritated. and the kids are upset too. So is Dad and hubby. As a Bipolar, how do you handle disappointment without going off the deep end. For me, disappointment as well as intense anger and depression would be relieved with a razor blade. Since I don't have that avenue of release anymore ( I'm still fighting urges), I don;t really have a way to cope.