good luck, lol the Orthodox church in general is "amill" not in the same form as the protestant groups version but close enough. The early church was a mix of chiliasts like you named and "amill" and it was never really addressed until later on, Andrew of Caesaria wrote the first orthodox approved exegesis on the apocalypse and from his words on chiliasm disappeared now the non-chiliast view is the orthodox view, this however does not necessarily mean that you must blindly believe it. I am still struggling with my eschatology, I would say that the best thing you could do is make it a priority and a struggle to seek out why The Church holds this opinion and why you should this can take a life time but it shouldn't be something that keeps you outside of the faith. I dont think at least, maybe someone else would disagree though.
A Thiarna Íosa Críost, A Mhic Dé, déan trócaire orm, mar is peacach mé