In a wierd way, it was this Pessimillennialism that drove me out of that camp. I remember when people were selling their homes and living it up on credit cards because they were absolutely convinced that the LORD was due on The Feast of Trumpets.
I remember the terror tactics used back in the 70s when all of this was the in thing. The hypothetical newspapers they made that pretended the "Rapture" allready occured. It is funny that this element of people will immediately take sticks and chase you out of the room if you declare God's Grace in Election because they think that it is harsh for God to force anyone, yet they thought it was perfectly respectable to terrorize young people into salvation with fears of being left-behind in a feral god-less society. "You better love God now, or you will suffer unimaginable horrors and misery."
For a thread on Ezekiel 38-39, there is an amazing lack of discussion on it. FWIW, I subscribe to the Gog and Magog image as the spirit of Antichrist, along with those who actively hate God's People (your pick of who), who rise up together to attack the Saints. Along their course others give their thumbs up approval and may even want to tag along for the fun of it. When it appears to be most grim, the Spirit of the LORD, simiarly to what happened at Sodom, stirs up a confusion where they essentially eat each other leaving the Saints of God unmolested.
I can't find any example or type of this in Scripture though, which makes it a dead-end for an actuall physical fulfillment. Rather, as far as the eye can see, when God raised up armies, it was to lay the Smack Down on a disobedient Israel. (pre 70AD). This might fit in better with your PostMil theories.
One thing that I was impressed upon while reading a vast body of literature on these passages, is the variety of opinion to who Gog and Magog was/is. The only conclusion I could come up with is that Gog and Magog are not to be identified since they aren't a concrete instance of any one entity. Instead, it appears that they represent the spirit and body of evil that wars against the Saints.
It sounds like you depended on writings of men in your past. Of course you disappointed. Yet it sounds like you are still depending on writings of men to shape your present. Of course you will be disappointed.