I decided last night while derping around with an unstructured play sort of workout that I wanted to try and kick up into handstand position for the first time against the wall. I take aikido, so I have no problem with diving rolls and letting my feet fly above my head, and I know how to kick up, but the presence of a wall is making my head go "hell no!" whenever I start the process of putting my hands on the ground and kicking my feet up above my head. How do I get over the mental block?