Spell Slot Recovery Handbook

spell slots you have to cast your wizard spells of 1st level and higher To cast one of these spells, you must expend a slot of the spell's level or higher

spell slots The wording implies, to me, that you prepare them at once When you do so In normal English usage it makes sense for one

spell slot counter To cast one of your warlock spells of 1st level or higher, you must expend a spell slot You regain all expended Pact Magic spell slots when you finish a short

spell slot tracker Most levels that see an increase in spell slots give you about levels of spells per level Levels 1, 3, 5, and 9 give you more Levels 12,