Frankly, I disagree. People stay on medications because that is the healthiest thing for them to do. People with chronic depression are most likely never going to get "better" although there has been some promising research using psilocybin with long-term, chronic, depression.
We do not, if we have any sense, look to explain science from texts that were never intended to be scientific. The Torah, the Bible, Qur'an, Bhagavad-Gita etc all precede modern scientific knowledge. We should not, ISTM, look there for scientific insights.
No, he did not. What he wanted to do was use the brain given him by God to understand the natural world and, latterly, to advance science. He accomplished both of those things.
Genesis 1 and 2 are not concerned with the HOW but the WHY, things exist because God desires them to exist. That God used the processes of physics and chemistry to do this in 14 or so BY does not remove the desire of God to create.