I went through some of the same issues. I started dealing with the religious issues fairly early on. I think I might have skipped the first communion that I attended after leaving the LRC, but none after that. It took a year to join the choir. Since then, I have played in the band, even doing it very recently (imagine that, allowing a 57-y-o to play guitar in the band — it convinced me to go out and buy a new guitar just 2 days ago).
It has been the thinking about church, leadership, denominations, unity of believers, etc., that has continued to be my problem. I rock along for years not being faced with a particular issue and then it pops up in some sermon or Bible study. And I default to LRC dogma.
And the thing I am slowly coming to see is that the key is not in just saying that the LRC position is wrong, but in seeing why it is wrong — or right. Look at the basis for the thing, teaching, etc., that is your default. Does it really say what you think it says? Or was there a message, LSM book, training, etc., that redefined the verse or passage without justification. (And be careful about how some overlay like "God's economy" is so often used as a basis to reject the obvious meaning of a passage and the supplied meaning not be findable in the passage.)
Later in that letter, Paul reigned-in their penchant for meeting in which everyone got involved, but Lee managed to conclude that everyone can speak. (A little counterintuitive?) We got fed this line about "Nicolaitan" meaning clergy being over the laity (unlikely what it means) and we therefore can dismiss any kind of clergy as being Satanic. (We can "clearly not choose the wine in front of you.
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Were any reasons given really any different than with the LRC? Do they really have no hierarchy? Do you local elders not answer to someone or someones with flesh and bones and living (probably in Anaheim) at this very time? What happens if they quit having as many ministry station meetings as they have been having? What happens if they cut their standing order of LSM materials in half?
The true normal Christian life is a Christian doing normal things, but righteously and with love for those around him. That means honesty and integrity in the marketplace. It means kindness to all. It means having normal relations, conversations, activities, with all kinds of people. You don't even have to segregate from those worldly people.