Replying to Will 189s be way to big on me for free ski?

I am around 200cm without shoes on, and I have Vishnu 189 keys on the way. I would have ordered 184s but for some reason he only offered the keys in 180 or 189. I actually personally asked him and he said he would recommend those over the 180s for my height.

I’m really exited for them to come, but been having a bit of buyers remorse because im worried they will be way to long. Last year I had heavy 193s, so it will be a huge step up regardless, just worried I could have done better.