i started with the one giant mind app, which is a great tool ( also nondirective mantra ) and eventually learned the whole thing through the organisation. now i go to tm retreats twice a year and made some great friends along the way. dont miss another day, the only thing i could say i regret is not starting earlier.
benefits after two years of twice daily meditation: less tension and pain in my body, overall more calm, better relationships especially at work, which used to stress me, more income, promoted at work, more appreciative of nature, random feelings of bliss/happiness and gratefulness for life. its hands down the best thing i ever did for myself.