They say that ...when you find yourself, try to become a better person all your shitty friend ...well, they will be gone. God will not allow you to work on you, let you get better and heal and keep bad friends that influence you the wrong way. that is not going to happen.
You know, God never DID say he wouldn't give us more than we can handle. In fact, He kind of said the opposite! He may give us more than we can handle on our own so that we will have no choice but to seek His help! He wants us to completely depend on Him for everything!