Coach certification

I signed up for the coach certification I felt excited and belief in myself when I did and now I find myself feeling fear and worrying about what others will think of me, I have so much self doubt and judgment about myself that I’ve considered giving up and realized that I would just be failing ahead of time, I feel like I’m not good enough or worthy of being a coach, I want to believe that it’s possible that I can be, but I’m struggling to come up with thoughts that will feel true for me.