More often than not we are pushed and swayed by our problems, and are greatly influenced into following a path that we know would generate the least resistance, instead of keeping our eyes on the prize and going after what we dream of achieving.
Don't let a rough day at work influence you to quit before you know you don't have any other options. Don't let your boyfriend or girlfriend talk you into cutting out your dreams in life in order to make sure that they will stick by you, because if they really loved you they would stick by you no matter what. Don't let unexpected challenges or circumstances, which arise in everyone's life, deter you from your goals and aspirations.
Let your dreams guide you. When things start to get hard, and when you feel like giving up everything, remember what you are doing it for, remember your dreams, and use them as motivation to keep going.