It might seem like a good idea to present yourself as someone who has got it all together and can deal with every problem in a second, and a lot of the time that can be true. But at the same time, it is important not to hide your problems from the people who care about you. Let them help you. If they're real friends, they won't let you down, and afterwards you'll be closer and will understand each other better. It can never hurt to let people know when you need help.
