It’s tough to try to work out on your own, to try to attain a certain objective in the gym without completely knowing what you’re doing. It’s sort of like guess work. You’re there, you know there’s pain, and you’re sure that something will come of it, but you’re not really sure about what to expect exactly. You’ve worked with a trainer, but they were expensive, and not really worth your time in coordinating with the person’s schedule. Plus, half the time he didn’t know nearly as much as you’d hoped he would have. Really, the key is knowledge (like it is with most anything else you’ve probably had to deal with). And with that, you could expect to find key pieces of information where there are notable authorities on the subject, specifically, this subject of fitness, exercise, and general health. You might consider looking up documents regarding a px90 workout, which is said to be a very thorough workout regiment.