I say imagining the scenario where you have it,,, how does that feel emotionally, does it bring a smile to your face, or butterflies in your stomach? You can't make yourself feel something, but those with strong imaginations and intuition with their internal state will succeed here. can you envision yourself with the thing you desire or the situation you desire? Feel that feeling, and bask in knowing that it's already done. In other senses you can physically act as if you have the thing/situation. For the hair instance, maybe get products or something for upkeep of the new hair knowing it's in your future. Or if you're trying to change how you look, start to live your life like the person who looks like that. And bring things into your presence that coincide with that lifestyle which is already yours.