Being too nice. That's when others take you for granted most of the times. Holding on to crude past that pricks you every time when you think about it. Never waste your time on silly things. Don't fall in love with someone who is already in love with another person. Do not ignore your health. Don't be sloppy. Regretting. Mistakes are bound to happen, sometimes. Procrastination. Do it now right now if you want it. Don't hesitate to know people. Read them. Everyone has their own story. Putting your key to happiness in someone's hands. Expectations. Expecting more from others and yourself is just simply going to increase the number of sleepless nights. Don't stop loving or spending time with your parents. Falling in love when you're lonely but fall in love only when you're ready. These are some few things that I agree upon;)