It is extremely important to "enjoy the ride" as my mom explained when I saw her yesterday. Though life can certainly be tough at times, it is very important that you keep moving forward, and enjoy each day as it comes.
If there is something that you are anxious about at the moment, try to just take a step back, and just breathe. Everything is going to work out the way that it is meant to. I firmly believe that if you know what you want to accomplish, you will reach your goals even if you don't exactly know how it's going to happen.
Envision where it is that you see yourself in your life, and you will ultimately gravitate to that location.
"Believe you can and you're halfway there." - Theodore Roosevelt