Good catch Christina, and only $39.95 on Houzz. Large stencil, shouldn't take long.

The concept of "script on walls" has outlived it's time. What is style of your room and what other options might you consider. I see a possible white antique cabinet and your curtains are a taupe color, so if you are leaning French, I would consider going for a deep color on the walls. Paint is less expensive, easier to do and would have more impact. If you like the "script" you can get pillows for the bed that have "sayings" on them and when you tire of them, not a bad thing to use them elsewhere or donate them.

If it makes you happy - go for it. A bedroom is a space that must be completely yours. As this is in your own bedroom, I think you should have what you want
and what makes you happy. The bedroom is a personal place and one where
you should feel the most relaxed.

I know there are many people who think wall script is nice, but I'm not one of them. I'm someone who is annoyed by wall script - it forces me to think the words. I prefer my thoughts to flow without being interrupted by a wall with writing on it.

Although I must admit that readying the French in the wall forces me to "hear" (in my head) a language that I enjoy listening to (Parisian French).

It's your bedroom - make it as enjoyable as you can.