New to Armored Princess

[shenful]

Hi, I am currently playing on impossible as a mage.

Killed everything in Debir and left 3 units alive on scarlet and killed a few on Bola. Been doing the achievements as much as possible (Grinding stone skin, and flame arrow is a pain), but I'm stuck on 3 things.

1. How do you get to Verona, the enemies guarding these things seem to be unkiteable and I don't even think I can beat the invincible or lethal enemies that guard them.

2. How do you actually use wanderer spells. I pull up the spellbook in map, regular walk around mode, and in battles. I can't seem to use them only sell. What is the exact step by step process in which you use the scrolls?

3. How do you use ur boyfriend abilites I currently have the pirate one you get on scarlet just so he can hold the training sword and some other cheap items (not using the pirates or bad units so I can finish getting to grand strategy lvl3)

EDIT:

Restarted the game on impossible this time a whole lot smarter and somewhat cheated and used a save scanner to see where everything would be. Killed basically every unit I could with a trap and used a 4 archmages and 10 inquisitors to clear debir and large portion of scarlet. Spammed the crap out of magical shield every time.... damn these achievements and their temptations. Should be able to go toe to toe with a invincible army soon so I can get to Verona. I got ghostblade lvl 3 now and with 3 lvl 3 traps auto placed b4 each battle I should be able to grind out a victory.

Current Army:
Inquisitors
Royal Snakes
Polar Bears
Evil Beholders
Cyclops