When we have a dream or a goal we should definitely chase after it and achieve it. It of course is not going to be easy so we can't expect it to be done with the mere snap of our fingers. No, we are going to have to work for it. It may get difficult and you may want to give up, but if you keep pursuing towards your goal, you will achieve it.
God never puts anything in your life that He doesn't think that you can't achieve. You need to have faith that God will see you through and that He will give you the wisdom to work through it.