Cosplay! - Making a cosplay

I really like cosplay and a lot of my cosplay are closer-cosplays! I was to learn to make them but I only know how to sew by hand, despite having a sewing machine I don’t really get it.. I feel I can just watch YouTube videos on using a sewing machine, but I’m not sure which type of cosplays would be easiest to make for beginners… I want to cosplay pomni but I don’t know it that’s be easy to make..