How many times should I forgive my brothers?

Peter asked Jesus "Lord, how often shall my brother sin against me, and I forgive him? till seven times?"

Jesus said unto him "I say not unto thee,until seven times, but until seventy times seven. Therefore is the kingdom of heave likes unto a certain king, which would take account of his servants. And when he had begun to reckon, one was brought unto him, which owed him ten thousand talents. But as he had not to pay, his lord commanded him to be sold, and his wife, and his children and all that he had, and payment to be made. The servant therefore fell down, and worshipped him, saying, Lord, have patience with me and I will pay thee all. Then the lord of that servant was moved with compassion, and loosed him, and forgave him the debt.

But the same servant went out, and found one of his fellowservants, which owed him an hundred pence, and he laid hands on him, and took him by the throat, saying, Paying me that you owe. And his fellowservant fell down at his feet, and besought him, saying, have patience with me, and I will pay thee all. But the servant would not, but went and cast him into prison, till he should pay the debt.

So when his fellowservants saw what was done, they were very sorry, and came and told unto their lord all that was done. Then his lord, after that he had called him, said unto him, O thou wicked servant, I forgave thee all that debt, because thou desired me: should not you also have had compassion on thy fellowservant, even as I had pity on you? And his lord was wrath, and delivered him to the tormentors, till he should pay all that was due to him.

So likewise shall my heavenly Father do also unto you, if you from your hearts forgive not every one his brother his trespasses