I am embarrassed to say that I have been jealous all day. Embarrassed because I know why I am jealous and there is no solid/logical reason for it. Absolutely ridiculous. I would love to just get over it, but I doubt that will happen. Smush the feelings and move on.
Jealousy is a terrible thing. It makes you angry about things that you have no influence over, depressed about your anger and inability to control things. It also makes you stupid. Once you are focusing on things that you cannot control you lose control over things you can normally control. Once you lose control over the important things you are stick and may need help to get back on track.
There are many ways to deal with Envy or Jealousy. One is to just recognize that you are jealous and then move on. You could also talk to someone if you are not able to move on. They may be able to alter your view point enough for you to move on.