So, I've recently been questioning my beliefs because I was raised Catholic and sent to Catholic classes due to pressure from my extended family. I've decided that there's no way to 100% prove or disprove the existence of God(male/female/gender N/A). So then I looked at it from the 3 distinct possibilities from that.
1. There is no God. This is possible. If so, there's no point in thinking about what happens in the afterlife/if there is one because the most likely truth here would be that you cease to exist upon death, and thus would never know the answer is nothing.
2. There are multiple "Gods". If this were true, they'd realistically each try to reach out to their creations and make themselves known, so this can be ruled out.
3. There is one God. He/She never makes himself or herself directly known. I don't know whether we can declare for certain whether He/She knows everything or makes mistakes, but rather we are in no position to question Him/Her, as He/She has existed since, quite literally, God knows how long and would realistically have vastly superior knowledge over the physical universe having created it and would have had plenty of time to think about everything He/She has done.
As such, I believe 3 is the most likely solution.(or at least the best assumption to work with)So the question would be then, why would God not make himself known to anyone for 100% unless it was a necessary exception to the rule? No person in their right mind would knowingly sin if they had had it proved to them that upon death their sins could be eternally punished.
All that said, I'm still not 100% sure about Jesus being the son of God/God(though I certainly believe his teachings are a very good way to live your life and the word would be great if everyone actually followed it.(Referring to judgmental holier-than-thou "Christians" who don't embody the peace, love, or forgiveness Jesus taught, yet love to call themselves "Good Christians."
I also take the Bible with a grain of salt as it was written by people (and for different times and cultures than our own)and we all know people make mistakes. I'm still deciding on how I feel about the Old Testament.
On the "Trinity", and I'd probably be called either a blasphemer or a heretic for saying this, but I believe it is one of the most confusingly worded teachings I've heard in the Catholic Church, and indeed the words don't make a ton of sense. I believe that God isn't three persons, but rather we know of 3 different manifestations of God, the "Father"/Creator, The Son- Jesus, and the "Holy Spirit", the "force" or "touch" of God in the material world. They are all the same being, just different manifestations of this being, not 3 separate people.