Control you're mind for you're mind knows best and is capable of making well thought of decisions , once you let you're heart control you then you run and act purely based on emotions. The trick is to try and balance it out and be able to control them. Personally in my opinion it requires both to fall in love, if both disagree with one another then the person will always remain in doubt. Never give up and never let to, be firm and stand and walk in the direction that you want to walk in. How ever remember that you need both to agree in order to have peace of mind and soul.
This is my opinion :), wish you the best.