I am a guy but around your weight and short legged too. For the manual handling of the bike section my instructor gave me a very good tip. Hold both grips on the bars with the front brake on, lean back so your weight is pulling on the bars and then slowly release the brake and it will start rolling, then just keep pulling backwards. He also told me to do it like a three point turn instead of a half circle into the next bay and this did make it easier for me too. Remember to keep the bike as upright as you can and go slowly it isn't a race. Also don't forget your shoulder checks before moving the bike. HTH.