I won't say ruined but caused me a lot of wasted time chasing after their bull shit of meeting attendance and as a unpaid advertising agent for the corporation's material prosperity.
That being said I have learned to adjust and change even after 29 years of indoctrination. It wasn't easy but I feel a change at age 47 was good for my brain's neuroplasticity I'm now 64 and have many new interests that make life better and more worth living then the bull shit the WT crammed down my throat.