If you pause and take the time to analyse why someone may be acting with jealousy, you can begin to understand what may be motivating their behaviours, which then makes it easier to empathise with their circumstance.
Negative thinking often begins with the unrealistic expectations that the path should be clear for whatever you’re trying to accomplish. When things go wrong, this doesn’t need to reaffirm the idea that you’re no good at anything. Instead of dreading failure, look forward to it as an opportunity to learn.
Is a past hurt or painful memory fuelling your negative thinking? Choose to let go of that memory every time it comes to mind, and to forgive the person associated with it. Know that this takes time, and there will be days when you won’t feel like letting go. But when you do, you’ll begin to experience inner freedom.