Disappointed

I consider myself to be an intermediate sewist, but I had never tried to put a collar in like this.  I could have done it if I had been able to interpret the instructions.  They photographed the steps instead of using drawings.  The fabric they were using was a light cream color, and when I got to inserting the collar, I couldn’t make out on the photograph what they had done.  I inserted and removed the collar 4 times, and the project ended up in the trash.  I looked for a tutorial to no avail.  I am writing this so that others will be aware that they need to know how this collar is inserted.