yes, severely
minds or thoughts
Great people....great minds....think great thoughts. Little minds can be sidetracked or distracted by petty, immaterial things. It's a "not so nice" way of saying someone is petty, immature or simple.
everyone
No longer. As you get more sure of your stardom there is less likeliness of these thoughts.
it can influence the decision of the minds
Technically, it could be. If you keep racism to yourself, then you'd only be bullying hypothetical people in your own mind. But often, thoughts of racism do lead to harmful actions such as bullying.
Mental bullying simply means you "mess with their minds". This can be done by gossiping or spreading rumors about people. Anything that could make a person cry or slowly start loosing patience is "mental bullying".
if you bully someone it will block your blessing.
The popes were constantly bullying him.
everywhere
Asif Jalal has written: 'Thoughts for the young minds'
Social opinions and views affect bullying greatly. For example, a race or ethnic group is more likely to be bullied and abused since society has the view that they are to be hated.