You know I understand how you feel about hitting a wall, I've hit a wall myself a while ago and got myself over it after playing my friend's cheap spammy rachel over and over, I finally figured out how to overcome that wall. Maybe if you could post videos of your Ragna we could help you a bit more.
And sometimes I find watching videos of pros not too helpful. Its better to find your own style of play and figure out things for yourself than trying to imitate others IMO. There are even times when I play worse after watching a video because I would constantly try to do things I'm not used to.