Often when people are seeking advice for decisions to be made, they will be told "follow your heart."
Hollywood loves this advice and builds movies based on this all the time. Not coincidentally, most of the films that are built upon this advice have happy endings. It should be noted that movies are fantasy and just because the two hour romance or adventure ends well on the screen, that does not mean it (whatever is done in the film) works in real life.
The only problem with this advice is. . .it's BAD!!!
The heart is deceitful above all things, and desperately sick; who can understand it? Jeremiah 17:9 (ESV)
Jesus addressed this as well.
For from within, out of the heart of man, come evil thoughts, sexual immorality, theft, murder, adultery, coveting, wickedness, deceit, sensuality, envy, slander, pride, foolishness. All these evil things come from within, and they defile a person." Mark 7:21-23 (ESV)
So, according to the Scripture, go ahead and "follow your heart" and you'll end up in a place defined by deceit, immorality, slander, pride and foolishness. (That doesn't make for a good movie.)
So, what is the alternative?
Simple answer, but not so simple task. Follow God's heart!
You see, there are two hearts. Living from the old heart leads to that which Jeremiah expressed and Jesus defined. Yet, God is in the business of transforming hearts. He takes the old heart and replaces it with a new one, at the moment of surrender and salvation.
And I will give you a new heart, and a new spirit I will put within you. And I will remove the heart of stone from your flesh and give you a heart of flesh. Ezekiel 36:26 (ESV)
So, here's some advice for you. Don't follow your heart, or your dreams or anything else that people get tattooed on their bodies that sounds like that. Follow His heart (and thew new one that He has given you that beats with His.)