after an unpleasant experience, you are careful to avoid it happening again
"After losing money in the stock market, he became once bitten, twice shy."
to feel intense fear or horror
to take responsibility for doing something wrong
to gradually weaken someone or something
to stop liking or doing something as you become older or mor...
Keep trying no matter how many times you fail.
to be so worried or upset that you don't know what to do