After 40 years and nearly 14000 hours in 20 different helicopters, it still surprises me how I can still make stupid mistakes. The secret seems to be in recognising that you have made a mistake and doing something about it before it is too late. This will come from experience, good basic training, being in genuine current flying practise so that you rectify your mistake correctly and immediately. With people learning to fly a little late in life and scrimping to save money to pay for helicopter hire for private purposes, it is vitally important you don't get into bad or careless habits and cut corners. Learn and keep learning for at least the next 40 years!