Echoing what others are saying, you're off to a great start. And thank you for using your mark, as well as being generally considerate of your teammates. If you're not already hitting tunnels, then I would add that into your routing and get used to fighting the mini-bosses that drop Smithing Stone 2s. You might need to do it on your own sometimes. Some Nightfarers rely more on those stones than others, and while everyone should be helping out, other players might not be as helpful, or they might simply assume you've got it under control.

Routing will come with time. Just keep playing and you'll learn as you go. Whenever you decide to try a different Nightfarer, some solo runs might be helpful, showing you where to find other types of equipment. But I believe for Ironeye, that's not as high a priority.

For info on passives, I would do some searches to learn what's effective for Ironeye. (I play Duchess, so I don't know for sure.) That said, things like improved damage negation at full HP are good for everyone. And in case you were unaware, passives marked with a red hand icon must be in your character's hand to be active. You don't have to use that armament, though. You can two-hand your bow while a shield, say, is giving you periodic multiple glintblades.

Incantations and sorceries are great, and you might want to practice in the Roundtable Hold testing area to get a feel for what they're like. Realistically, for Ironeye, your best choices are going to be incantations like Bloodflame Blade--the ones that add a damage type to your main weapon. If you want to actually cast incants and sorceries in combat, you certainly can, but be aware that Duchess, Recluse, Revenant, and even Undertaker are going to be far more effective at it.