I certainly agree that leaving dogma is hard. We see that very much in evidence as atheist scientist holding firmly to the physicalist dogma are perfectly willing to ignore all kinds of counter facts and evidence to hold to their view. Some, like Richard Lewontin, are even honest about it.
I'm not sure if you are religious, a physicalist (believing there is nothing other than matter and forces), or have some other belief or dogma. If you are a physicalist, then you have to believe six impossible things before breakfast. I've detailed a number of them on the publication Top Down or Bottom Up.
One of those is creation, which you identify as a reason to abandon Christianity. But the scientific consensus is that there was a creation even 13.8 billion years ago. You can believe if you choose that all matter and all forces popped into existence without reason or explanation from a dot so small it can't be measured--in other words, basically nothing. Or you can believe God spoke the universe into being.
You can also believe that the universe was exquisitely tuned for life on purpose, or came about by random chance, requiring an infinity of universes. I could go on, but you can read more of these in my series.
The two reasons for abandoning Christianity are among the least persuasive I have heard, as another commenter suggested. You have anything better than that? The strawman of biblical literalism is not necessary to be a believer in God, Christ or even in the relevance and authority of the Bible. Two different and conflicting versions of creation do not eliminate the creation event nor the possibility of God's role in it.
As for Christ's "error" in saying he will return before everyone alive then dies, is one of hundreds or thousands of questions raised by the literal reading of the text. You could have pointed out that in the Bible David and another character are both identified as killers of Goliath. If that is sufficient reason for you or anyone reading your post to abandon the faith held for over 2000 years and now held by about 2 billion inhabitants, I would say it is not the faith that could stand the fires of martyrdom as so many of our fellow believers did.
I encourage you to take another run at your reasons to abandon Christianity.
On a side note, if you are a physicalist your position leads you most certainly to nihilism as there can be no possible inherent meaning in the universe. This belief not does not contribute to mental health. I noticed mental health as one of the benefits you offer. I wonder how you square that.
