If you have knowledge you will apply it for betterment. A good investor have good knowledge of market and always hungry of more knowledge . He/she study the company investment strategy and analyze the growth pattern of company over years before investing. A good learner who make choices on basis of knowledge is a good investor.

Investing has many twists, ups downs and challenges in the way. Sometimes you grow very fast and sometimes growth goes deep down or even negative. Markets are affected by many factors like disasters, politics, social change etc. So change in this is constant. You need to adapt this constant change. If not you will definitely change your course as investor. You have to just support every move you make with evidence, this will allow for flexibility and success as a investor.