Oh my, we've ALL been there!! I'm one of the oldest running members at the gym and I still do stooopid things... I know you will worry about it but DON'T, no one cares.... Two really good ideas have been suggested, one, get a trainer or someone you know to show you around... two, keep on keeping on...When you first started walking did you stop because you kept falling? NOPE, instinct told you to keep going... So keep going.... It'lls get easier