Cool. I highly recommend learning how to vocalize music. Note, though, that vocalizing will feel difficult at first, because you’re basically starting a new instrument. To make it more interesting for yourself, try writing down words/syllables for each note on a copy of your sheet music (“la di da”, w/e) and rehearsing it the same way. Eventually, you can “perform” your vocalization for yourself, even up to the performance speed.

You’ll be surprised how much you will improve and how much confidence it can bring.

Best of luck!