Do not live the life of a coward. Stop fearing people. Fear only Allaah.
Know that if all of mankind was to unite against you they could not harm you in the least unless Allaah Willed. And if all of mankind united to benefit you they would not be able to do so unless Allaah Willed.
"...so fear them not but fear Me..."
And if Allah should touch you with adversity, there is no remover of it except Him; and if He intends for you good, then there is no repeller of His bounty. He causes it to reach whom He wills of His servants. And He is the Forgiving, the Merciful
If Allah should aid you, no one can overcome you; but if He should forsake you, who is there that can aid you after Him? And upon Allah let the believers rely.