Get more Hogwarts Legacy spell slots and you can carry more spells to quickly swap between. It's an important thing to sort out because as you learn more magic you'll want to equip more and more ...

You’ll earn +1 Wizardry points for every 5 ranks. Spells only cost Spirit and using magic can never break you, so you can continue to use spells even if you only have a tiny sliver of Spirit left.