Once you are defeated or offended!
you can't rise again with the previous enthusiasm! This may be mumbled to you a thousand times but let me tell you one thing; don't get up with the prior willingness instead a new vitality is being built up to stride you in the right direction. For instance; someone has insulted you in public or online chat but now what else can you do?? Can you protest for your honor? Yes, you should but how?
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Giving up is not the right excuse; I would suggest you feel tolerant! You may have to combat with yourself now; as your spirit is giving you pessimistic feedback that why you have committed such an act! but was this your negligence that people perceived you wrong? Not at all; time sometimes shuffles for everyone; just don't lose self-confidence when one is making sarcastic views about the incident that has happened to you. People will forget about you and most importantly your life wasn't swirling around that single point; Winds can't make the mountain bow before them.
So no one else is going to assist you in this matter: you are capable to stimulate yourself. Indeed you don't deserve all this but remember hardships only come in the way of dignified people who have the power to make the impossible manageable.
Get up and commence the new journey; don't squander your time making justifications about yourself; invest your effort in making people realize that how they have relinquished jewel like you while making hate speech and jealousy.
Time waits to none; no one will recall the downfall of yours; only the success is preferred by society. They stop thinking about them anymore; you have a long journey to move forward and these minor barriers gather no mass.
Everybody falls sometime, the important thing is to get up and keep moving forward :D