you're not a failure you're an human and we often a lot of mistakes,so if you are a failure we're all failures because we all fail at doing things even for the rich people who fail to be humble and grateful.if you can't stop lying to your parents then at least try to tell them the truth because one day they'll know about it and it's beter to tell them now than to let the future tell them.If you ruin every relation ship you're in then maybe they didn't deserve you try to find a good person,if you feel not mature enought try to make mature decisions it'll help you a lot