I can definitely help lessen the blow but whether you choose to internalize what I will say is entirely up to you and your respective levels of anxiety at any given moment. The honest truth is that you felt it before and you'll feel it again and even when you surpass the people you look up to you'll keep feelin it.
Visualizing something and having it come out all wrong is just part of the process and the process is never ending. i'm really good at visualizing things in 3D space but I'm terrible at internalizing anatomy. I need/use reference material a lot. You'll naturally have some strengths and some weaknesses and you just gotta not beat yourself up about it too much because every artist you know and follow has been there and almost certainly still is there on occasion

