Confidence comes from competency?

Hi Brooke,
I’m a new health coach wanting to specialize in weight loss, and although I was formerly at my ideal weight, in the past year I experienced fluctuations and now have some to take off. I lack confidence to market myself as a weight loss coach until I lose my own weight (I would feel like a fraud — you can only take your clients as far as you’ve gone yourself).
Would you agree with this approach of doing things? Certainly it doesn’t “feel good” and seems self-critical to put business aspirations on hold while I get my own act together, but at the same time I view this process as worthwhile for my own growth, and to appear credible, etc.

Do I need to do thought work on my insecurity and start coaching now, OR lose the weight first and start helping clients once I’m back to my ideal?

Thank you so much!