Strongly agree, stop being negative and start being positive indeed. If you are being negative it will pushes you to quit the fight, and you can never win, if being positive is like being determine to win the fight and can achieve success.
Exactly, being positive can give you a potential to reach your goal to success, however the negative thoughts is not good when it comes to get our dreams, because like you said it will guide you to quit and didn't pursue your dream. Anyways, almost all successful people have a positive attitude to reach their goal and get the success what they want to achieve.
" yes it's easy to say but it is really hard to do it, but if there's a will there's a way "