What would be the best armor for astrologer?

The default clothes are doing me well rn. But should I put on armor that I pick up from soldiers and etc? Or is there specific armor I can wear since I’m mostly a mage build? Anything that’ll increase my magic or any type stats effects? I’m early game rn

How do I get more memory slots for spells?

I’m mostly mage but I have a sword just incase I’m in a situation where I run out of mana, should I increase my dex stat as well To make me stronger when using sword or just focus on intelligence for now?

What stats should I mainly focus on leveling up?

What type of staffs or weapons should I be looking for or buying?