Earlier today I was happier than I have been in a very long time. I felt like I finally knew what I wanted, where I was going, how I would get there, and as if nothing could stop me. Now I don't feel anything...except tired...how did I go from feeling happy and social and confident to anxious and withdrawn in the course of a few hours...why can't I hold on to these good feelings...why are they here and then just never last through the day...it makes me not want to try and live a good life sometimes...because happiness doesn't even last through the day for me...it's exhausting to go from excited for life and all the opportunities it holds to feeling exhausted and apathetic...and it makes me more anxious when I do feel happy, because I'm so worried it won't last....how do I make it last...I haven't been in a serious committed relationship in forever because feelings for someone don't last for me either...friendships even I can't seem to keep a solid hold on to...it's like every feeling I have is there for a second and then flies off again. Then it'll come back for a little while, and then fly away again...I go from feeling whole to empty to whole to empty over and over and over...what do I do..