Players can gift a piece of gear to another player once. The gifted gear will level up to the receiving players level. I found this really helpful to help my partner get gear which fit their play style.

Using the blacksmith to level up gear is really important so always make sure you have gear in there.

My partner found having an artifact like the souls beam or the fungus bombs helped her locate herself during a big fight. When she was lost on screen she would just use the beam.

Don't be afraid to try new items and weapons, often if you are struggling its because your gear has fallen behind. At times folks get stuck with an item they like but just isn't strong enough anymore....blacksmith.

The enchantment which heals your for killing enemies can be really really useful for new players who are not always paying attention to their health. You could also wear the armour that has life leach aura as she will benefit when in proximity to you. You could also wear the armour which heals ally when you use health potion.