In everything related to bitcoin and the crypto space, the importance of arming your self with information and proper knowledge can never be overemphasized. What others have done before you should never really be of a concern to you, what is more important is doing your own personal research as you will always be advised and you will navigate efficiently, If you focus on what others has done you will never see the good in what you are capable of.
As a newbie you shouldn't also forget that some losses here and there builds experience and confidence so they shouldn't shake you.