I'm only sitting with my 3rd episode in the making of my first comic ever - and confidence has unfortunately not been my biggest issue.
My issue is mostly "do I make the most out of the scenes I encounter?".
Sometimes I even go back inbetween two frames just to add in another frame of content to make the comic seem more natural in pacing and also to add in feelings or other details that would help me get the story across.
Of course, I'm no expert, but the main reason I started creating my comic in the first place was because, I had a story to tell, and the story means so much more than the art style at first glance.
The art is something you mostly glance over while your eyes grab onto the text to get the juicy details from the story. The pictures and illustrations done along with it act as a buffer mostly (others might not agree with me, but this is also only from my own experience).
It is kind of similar to writing a novel, what is the story you wish to tell? when you have the answer you start writing to explore the world with the readers.
So, all in all, don't be too flustered about your confidence jumping up and down while you work on a project.
Jumping right into it is by far the best answer when it comes to creative stuff - only your mind can set the limit of your abilities.
Love Mini