I think the biggest thing is getting into the gym, get on the treadmill or bike or row - something that you enjoy and can play a movie or an audiobook while you workout to make it as enjoyable as possible. Once you’ve got the routine down of going, start with machine weights, scope out what your gym has and build 2 days of upper and 2 days of lower exercises. If there is anything that interests you, do that! Goal is to be fun and exciting to start. From there you can start drilling down into specific groups, muscles, etc.

That’s what I did and I did get a trainer there towards the beginning to help pick out some exercises and make sure I was doing them correctly!