double french braids! HELP!

Hi everyone! So today I finally decided that I am no longer going to accept that I can’t do a braid. For the past 6 hours, i’ve been watching tutorial after tutorial trying to get it right. Braids have always been so challenging and frustrating for me to do. Only one of my friends knows how to braid and it was hard for her to explain how to me.

I’m really having trouble with the braid on the right and getting my hair to part properly down the middle so the two braids look tight and even. Does anyone have any tips on how I can make a perfect braid? What do you think of the braid on the left? 😊❤️