Apparently to do "proper" strength training you need to focus on the free weights, or compound lifts, rather than gym machines that guide your movements. I.E. squats, deadlifts, bench presses, etc.
The problem is that these are EXACTLY the type of exercises that an untrained, anterior pelvic tilted computer long-time dweller will do wrongly as they don't have the right flexibility or skills or knowledge about how to do them right.
I remember how close I was to messing up my back permanently with deadlifts, and that was in my 20s. Thinking about going to the gym and starting doing them again unsupervised at my age is, to me, madness.
I really wish if someone could give me some advice in this matter...