i put wrong resolution and now i cant enter the game how i can change from outside the game

So I read that not only are units in shops somewhat random, but so are items/scrolls. Pretty early on, I found the Well of Mana belt item, that regens a bit of mana per turn, which has been an awesome help, especially with even 1 point in Concentration giving me 5 mana back per turn. Did I stumble on to something good, or do much better items start to show up at some point? Is there a chance that due to the randomness, I could potentially miss out on some "best in slot" items? Not too fussed if so, since I...

What units do you recommend I use in this fight. I'm warrior lvl 23

When should I start taking leadership instead of stats for level up? I'm currently lvl 9 and Leadership is about 500 now when leveling up.

I remember playing this a long time ago. I cleared the game on hard and insane. One time as warrior, the other as mage. I'm now playing paladin on hard, but I'm a bit disappointed. It went very well, up until the dragon maze. I barely have any money, and every fight is overpowering or impossible. Even with maxed out units. I cleared out everything on the map besides the maze and orc lands. I'm lv 29. ATK 19, DEF 29, INT 11. I have maxed out order magic, high level rage spirits, maxed out almost everyt...