Tip #1: If you are about to walk into a suspiciously large room, it may be a boss/mini boss fight. So make sure to save!

Tip #2: Try putting a lot of your skill points in light/heavy weapons so that you can use the late game weapons.

Tip #3: I highly recommend having a party member that has alchemy because it is very helpful in staying alive. Also, it's nice to have healing potions if you get trapped in a corner or something.

Tip #4: This is kind of a dumb tip, but make sure to look for secrets, it'll make the game easier. (I think there's about 40)

This is all the tips for now, I will probably come up with more later.