You may want to reevaluate your take on "Phil". Sounds like that he was actually the content and successful one long-term, he probably does not roam ET to drum up upcoming book sales, he probably does not need to sell books at all.
And I am not sure why it is surprising that many in this industry succumb to alcohol, drugs, suicidal tendencies and other poor choices in life. The percentage of gamblers and addicts in trading is probably higher than in any other industry.
It's not the prayer or thanksgiving activity itself that provides contentment and happiness. It depends all on whom we pray to and and whom we give thanks to and put our faith and trust. If prayer and meditation is merely used to self-reflect and to become better beings by our own measure and standards then we still declare ourselves savior and lord over ourselves. Never heard how such philosophy leads to a more purpose driven and meaningful life. I don't know who you pray to and it's not my business just saying that as long as we pray and live a life that evolves around our own egotistical nature we are not any better off than animals that are born, grow, eat, drink, sleep, fuck, and die.