If some people hurt your feelings and mock on you. Just let them go and think about your inner peace and mind to get rid of shitty things. 

If you want become more Productive and Develop Yourself. So don't ever think about worst part of your life and Feel what happened good and best in your life. Enjoy that moments fully and live every second of your life in mental peace.

And never lose your kindness and politeness. If you lose your kindness then you are losing your character For someone who ruined your life and got away from to think of them For entire life. 

If you want be happy and prove them wrong then take actions they never thought about that. When you feel happy and enjoy your life by being happy and peaceful then you are doing great in your life. From that the person who hurt you and your feelings in past. They will be your appreciator in Future. 

And become the most attractive by the way of your talking when you tell a single word, they will be shocked (was he/she the same person whom I hurt in the past.) Then they will appreciate you and will become your; (servants in Polite manner.)

If you feel stressed then take a sheet of paper and start your goals in life. Make a to do list by accomplishing that on daily basis. When you accomplish the daily average goals on regular basis then you'll be more confidence and can achieve more things.

By achieving and accomplishing your daily goals you'll find new ways to improve your life and also can change your 'Standard Of Living'. When you live like king you will be in the manner of king.

If you have a person who is above you and more ahead in his/her life then Don't get jealous of him just learn from his Mistakes and Achievements in his life. If you copy them it is 'Okay' just do things which can get you ahead in your life. 

FOR EXAMPLE; If you had Copied Indian Investor Rakesh Jhujhunwala you would have more money in your family. And you could be millionaire. so copy that person you think is Ahead in His life and doing great in his life. So start achieving your goals and be more confident to be your own boss. Then you'll be more important in your life. 

These things take TIME so give your life time and wait for results. Be persistent.