If you have the protective equipment (knee pads, Wrist guards min suggets also elbow pads) then falling will generally not hurt. The first thing is to understand that you will fall at some point, if you do go with it.Once your past that then you can leave the wall
If you can get a pal or parent get them to stand with you so you can hold them for support. Try not to look down and focus approx 10m in front of you. Walk properly and pick your feet up. To slow down lean back slightly. When you come to a stop continue to ballance by moving slightly from one foot to the other. Once you can do this your pal/parent can let you go.
I have got loads of people walking unaided, this should only take 10/15 min