More motivation problems

If I get motivation to do something to better my life I usually lose it very quickly.

For example, I pick at the skin around my nails or I bite the inside of my lips and I initially didn't like the idea of wearing gloves all day but then I decided I wanted to try it but my mom refused to go to Walmart yesterday night (while we were in town) and now I hate the idea of gloves again. I'd have to wear them at school and I'd get lots of questions and I'd feel self conscious and what if I could get things out of my bag as easily?

I had motivation and rather than waiting til Wednesday I just gave up and now I don't ever like the idea any more.