Learn to "nest" your present actions within the scope of your future goals.
In other words, look at what you're doing now not primarily in terms of present benefits, but in terms of how they will help fulfill your future goals. The day in and day out routine and monotony of life can drag you down and suck the life out of you if you're not careful. This can lead you to for sake what are you doing because you don't feel like it's benefiting you were helping you at all. However, if you line up what are you doing in terms of how you plan to benefit from it in the future, it will provide extra motivation to finish.
For example, education can grind you down between the reading, writing, lectures, class work, and everything else. If you are not careful, you can "take your eyes off the prize" and give up too quickly. instead, enjoy the present and learn what you can from it, but constantly put in front of yourself what this education will allow you to do in the future. Keep your goals as a carrot dangling in front of your face so that, even if your legs get tired, you keep pushing and moving forward to get the carrot. This will keep you pressing on toward the future and constantly improving yourself, and also provide motivation for the present, which can feel like a grind many times.