Have you thought yo have no purpose here and you were a mistake

Have you thought yo have no purpose here and you were a mistake 
Well your wrong I'm a christian so I don't believe that  
People say to others you are worthless you have no purpose 
And they believe that well  don't believe it every little person you talk to or even say have a nice day to everything is done perfectly  if you read this you were supposed to
Every person you smile at even a fake smile or say have a nice day to those few kind words could have pushed them to do something greater  
And they might save and impact thousands of people and you had something to do with it its an amazing thought 
But no you took your life and never talked to that person that day so you ended up not doing anything with your life
Which one would you want impact or nothing 
 You could have done something greater with your life having credit for impacting one person who impacted thousands in a great way  you might not know it 
But tomorrow you might meet that person so don't give up finish your race don't jump off track
Seek God bless you all(KJV bible)