SOONERborn80

You are NOT "wasting your time" using the machines because you can still get a good workout. Just mix it up by going in there once a week for a workout. You will eventually get more comfortable being in there.

It is not really eating more that works its finding the right amount of calories that works for your metabolism.

You quite possibly might be doing to much cardio. Also try to go as heavy as you can in an 8-10 rep range.

Thats a loaded question. Tired - It could be from too much exercise to start instead of gradual increase. If you cut out caffene you can have headaches. If you are not eating enough you might feel that way.

It really doesnt matter but if you do it in the morning you get it out of the way and usually will have more energy. You MIGHT be able to burn more fat in the morning because your energy stores might be lower but you can get the same effect at any other time if you lift weights before you do cardio.