to start behaving better after doing something wrong
悪いことをした後に良く振る舞い始める (warui koto o shita ato ni yoku furumai hajimeru)
"After the accident, he decided to turn over a new leaf."
"事故の後、彼は新しい人生を始めることにした。" (jiko no ato kare wa atarashii jinsei o hajimeru koto ni shita)
don't make plans for something that might not happen
to inquire with several people
to trust or believe in someone’s ability
to defend against something or someone
something that has a very small chance of success
Being patient will eventually lead to positive results.