I have always been eager about better educating myself when it comes to my body and exercise.
If you are starting a workout program, be realistic and safe about it.
Don't let fear stand in your way. If you need a fitness trainer to motivate, instruct and guide you, that's a good way to start.
The Internet is a great place to gather information about fitness and health.
Everyone has an opinion, but you have to decide for yourself what is good information and what doesn't apply to you. You are in control.
Avoid injury and get proper training from the start. It is 2023 and I'am 70 yrs old still running and pumping weights and most of all, DANCING! Rock on.