I stay motivated by setting a goal for myself and then work hard towards achivieving that goal. Even when things start to get difficult I just remember the goal I set for myself and what I want to achieve. Remembering all that motivates me to work even harder and not give up. Never limit yourself towards what you can achieve and always believe in yourself. Also do not let failure demotivate you instead let it motivate to do even much better.
''Fail early, fail often, but always fail forwad" by John C. Maxwell
Which simply means in life you will experience failure but let it not discourage you instead embrace it and use it as a learning opportunity to be better in order to be successfull towards achivieng your goals.
ALWAYS HAVE A POSITIVE ATTITUDE TOWARD LIFE.