Only if you make the vanity along the long wall too without an actual floor plan this can’t be answered with any help . Usually a long narrow bathroom has the tub on the short wall at the end and you do not have enough room for a free standing tub there .

Hire a Pro. Amateurs doing space planning very rarely ends with a workable result. You're trying to DIY dentistry here to pull your own teeth, and you missed the one that's actually giving you trouble.