This is a bit of a personal one! Some more resources I'd recommend are:

The Unfair Advantage book: https://www.amazon.co.uk/Unfai....r-Advantage-Startup-
Ted-Ed on Imposter Syndrome: https://www.youtube.com/watch?v=ZQUxL4Jm1Lo
The School of Life on Imposter Syndrome: https://www.youtube.com/watch?v=eqhUHyVpAwE
Your local doctors/seniors in hospital

If you feel inclined to get in touch with me - Instagram is a good shout :) - https://www.instagram.com/elizabeth.filips/?hl=en

To Save You Some Time:
0:00 - Intro and Why I'm Talking About This
0:50 - What Imposter Syndrome Is To Me
1:42 - It Is Unreasonable To Not Have Doubts
4:12 - Competition
5:14 - Don't Create a Competition For Yourself Where You Can't Compete/Change Things
7:08 - What Is Your Worst Case Scenario?
10:31 - Runthrough Summary