Jealousy and Anger is a deadly emotion which burns you first before it can be thrown on others! It is a weapon that causes self destruction more than anything else.
The main difference between envy and jealousy is that envy is the emotion of coveting what someone else has, while jealousy is the emotion related to fear that something you have will be taken away by someone else.
Emotions actually are necessary, but what is vitally important is they must not control you. Instead you must always be in complete control of your emotions. Anyone and everyone can change but only when they genuinely want to. It will surely require Patience, Practice and Time. Develop new skills, new responses, practice over and over again to manage ANGER and be happy and blessed always.