When you are defeated once, don’t give up. Thomas Edison said “Many of life’s failures are people who did not realise how close they were to success when they gave up”. Just going that extra inch can take you that extra mile. The difference it can make to yourself or someone else can be astounding.
If someone says you can’t, it is because they have not tried. Show them you can even if your inner self is saying you can’t. You will have at least tried. Fall down seven times, stand up eight.