If "spirituality" means following the leading of the Holy Spirit of God, (which is supposed to be a part of the Christianity I am familiar with) then only one "interpretation" is correct.
On the other hand, if "spirituality" is a meaningless, nebulous word that no two people can agree on, then the voice you are hearing in your head is probably not God's. More than likely it is your own voice. A lot of people made it to California in your wagon train analogy, but there were also some Donner parties...
That said, there are reasons to leave a church. God gave us a brain for a reason. Listening to your feelings is what gets most of us into the trouble we are in.
I would caution the OP to give some thought to what is making her unhappy at this church, lest the next church make her even more unhappy. Church is like a lot of other things (including marriage!) in that you mostly get out of it what you put into it. I went to church for the wrong reasons for years - to meet friends, to be entertained, to be seen, until I realized that church is for what we go there to do - worship God - and all the rest comes from that. Love the Lord your God with all of your heart, all of your mind, and all of your spirit, and you will find that you love your neighbor as yourself.
I was raised strict Catholic, attended Catholic elementary, altar boy for 6yrs, high school at different Christian schools including non-denominational and Baptist, close relatives that studied to priests, relatives that are nuns of different orders, relatives that are pastors of various Christian denominations. What they all have in common is, that at gatherings they will not talk about their beliefs because it always turns into a heyday. They each have different thoughts on it, as we all do.
When I refer to spirituality, I do not intend to directly refer to the Holy Spirit, but rather make reference to "spirit-consciousness" (the acknowledgement that there is a Supreme Being). I make this reference because each has their own interpretation of the Supreme Being, relative to the way they were raised. Many sorta consider God (the Supreme Being) to be an old man that sits on a throne and poofs havoc and mayhem, all the while, creating problems for the mortals to go through some sort of test, or problem-solving feat. I do not perceive Him that way!!
I have challenged many to find two people that interpret spirituality equally, equally in every aspect. In over 50 years I have not found those two people. But then logically, how can any human understand spirituality since we are material beings? We do try to understand, however, in preparation for "life" after death. AND YES, there are the Donner parties that erred , remember the parable of "Sowing the Seed". Some seed will land on rock, some seed........ Remember? It seems difficult to "understand" when God speaks to us, everyone interprets it differently. Do we think of it in our brain? Or do we think from the heart (soul)?
FOR ME PERSONALLY, not trying to speak for you or anyone else, I found that my physical mind has been "clouded" by ideals and thoughts implanted in there by society, propaganda, and various religious sects that I have been exposed to throughout my life. Many years ago I could not understand, if the particular religion is so perfect, why are there so many different sects and beliefs? It made me think of what Christ said, "A house divided amongst itself cannot stand." Catholics against Baptist, against Pentecostal, etc etc etc. I suppose that we each find that "church" that we feel comfortable with, that we can relate to as I our brain or heart feel???
For me personally, I attempt to "worship" God all the time, I mean 24 hours a day, not just on Sundays. I do this by "following" Him, "following" the parables left behind by Jesus Christ. And as I do that, I find myself doing more for others. I guess that you could say that that is why I am here on this forum, I am a happily married person. I am not seeking advise, I am trying to share countless life experiences.