Help me take a course for a personal trainer and receive a certificate

I have found my purpose in life, my passion for working out made me realize that that’s what I see myself doing everyday, I want to help people achieve their fitness goals, help them to live a healthier life and feel better. I have gained a lot of knowledge during the years that I have been seriously working out and following an eating and a working out schedules, but unfortunately that’s not enough to take serious steps into finding customers, I need validation that’s why I need a certificate.It would take me at least a year to save the money by myself especially now when everything is opening and closing and I really can’t wait anymore, I want to start my career as a personal trainer, using different methods and techniques depending on my customers needs and wants, on their food preferences, time limits for working out, time desired for receiving the final goal and etc.