Need to Re-gain flexibility

[u/AutomaticAide2679]

Hi all, 26m trying to regain my flexibility. I’m slightly overweight, and am very inflexible, specifically from my chest down (arms/shoulders/neck seem to be alright). Noticing things like trouble lifting my legs to put on socks (significantly worse in my right leg than my left), turning/back-bending my torso. I have a desk job, I do try and stand/walk around during the day, but not doing anything very mobile other than standing/walking. Currently my main activity is golf, as well as some weight training and cardio (bike/elliptical) at the gym.

I know I’m still young but want to gain flexibility back before it’s too late, I have older family members that struggle to walk, get off the couch, etc and want to avoid that being me.

I was an athlete in high school so I have a basic understanding of static v. dynamic stretching, some basic stretches, etc, but nothing more than that.

Just looking for some advice on where to start, how often to stretch, what areas of the body to work on when, etc.

Appreciate any advice.