I always tell them better not ask yourself why not? Why not see how far you can go, see what you can accomplish, after all pain is nothing but a great feeling. It may last a minute, an hour, a day, a month, or even a year, but eventually it will subside and something will take its place, however if i quit it will last forever. So before you go on quitting always keep that in mind. Never listen to the people who bring you down, this your journey and it will go wherever you lead it.