Aren't habits things you do without thinking? Mine are 'forgetting what I'm talking about' and 'going off the point' then later 'finding I was already going to say that and all is lost so I'll just stand here and get hot now.'
I think most of my problems come down to the fact that because I have very little memory, I learned to compress ideas into abstractions then use logic and improvisation to reassemble what I think. It makes me good at some things too. I also used to be shy and am mainly over it but presentations destroy my hard outer shell, so I melt under stage-lighting.