Does anyone know how I can fix my writers block?

I want to be a writer, I always have been. I have a million and one ideas swimming around my brain but lately, every time I decide to put the tip of my pen to a piece of paper my mind just closes up. I need to find a way to release everything. I want my ideas out of my brain and on to paper to share with others. Are there any sort of tips that could help me do this? I'm curious.