The vast majority of human beings dislike and even dread all notions with which they are not familiar. Hence it comes about that at their first appearance innovators have always been derided as fools and madmen.
If you have behaved badly, repent, make what amends you can and address yourself to the task of behaving better next time. On no account brood over your wrongdoing. Rolling in the muck is not the best way of getting clean.
repent: 悔い改める make amends: 償いをする address oneself to ～: ～に専念する、～に努力（心）を傾ける on no account: 決して～ない brood: くよくよ思う wrongdoing: 悪行、悪事を働くこと muck: ごみ、糞