Dream about hair getting longer is a hint for experience. You need to listen to others. You are open or receptive to outside influences. The dream draws attention to reality. You are seeking support and advice.
Hair getting longer dream is an indication for insecurities about your physical abilities. You need to direct your energies to more worthwhile endeavors. Perhaps you are looking to move. Your dream is a metaphor for a sense of entitlement that you have over some area of your life. You are looking for comfort in the wrong places.
If you dreamt about hair getting longer:
You are in a difficult situation. You are ready to take charge and move forward with a project, but you don’t exactly have all the facts and information you need to back up all of your plans and ideas. Keep things on the drawing board until you do.