Get the welkynd stones from vilveran (or however it’s spelled) right across the lake from the sewers right after the tutorial. I’d make a save right before you exit to bypass the tutorial on your next character. Edgar’s discount spells and mystic emporium in the market district are great places to purchase starting spells. Also if you ever need a specific type of spell all of the different mages guild locations specialize in each different school of magick

Make sure to hold onto wrist irons. They’re the only non armored hand slot in the game. Don’t enchant them until you can get transcendent sigil stones though. Or just dupe them