There are two components here. The obvious one is the hurt ego which can lead to the sentiments you mention. The less obvious is understanding that you can on

There are two components here. The obvious one is the hurt ego which can lead to the sentiments you mention. The less obvious is understanding that you can only control your own destiny. On the second, suggest trying to figure out what skill(s) the other person has that enabled them to achieve that which you are surprised (it didn't just happen by magic). Is it technical? Personal interaction? Networking? Then consider if that may be something you can/should work to improve. On the ego issue - There was a point in my life when I was a very angry person, apt to bitterness and tirades. I strongly encourage reading a book or two on chan/zen. You need not become a buddhist to benefit from their philosophical teachings and you don't need to meditate every day. But I do think you can become small 'e' enlightened and really improve how you view and interact with others and the ups and downs of daily life.