Changing Turntable to Balanced Output

Yes, you have read it. There is a lot more to it than what you have read. Whether it is worth it or not only you will know after having gone to the trouble to find out. For me, it is so far down the list of things I would do, wait a minute let me check. Nope, scratch that. Doesn't even make the list.

No adapter can create balanced.

Phono cartridge output is inherently balanced but one side is often grounded in practice.  However, you would need a phono stage with a balanced input to take advantage of a balanced output from a cartridge.  (I did that many years ago when I played LPs.)