This is my own design the I am Attempting to transfer into an EVA foam helmet.
Blender is a massive program to learn, so don't feel bad if you can't get into it. I've been using it for 6 years on and off, yet it's only been this past year that I really stuck my head down and got into it. Traditional pattern making by handing can be easier - it's a bit of an investment, but if you can make a headcast of yourself, you can make patterns to fit your head easily. Otherwise, doing it by eye with your own head will still get ya there.