Well the thing about it is you should stick to one body part a day imo. This way you can concentrate on it more and it gives your body time to heal before you hit it again.
It's all fine and dandy that you do 3 sets of 10 but how many exercises per body part do you do?
And don't rely on just machines for all your workouts, get into some free weights. Imo free weights are the best thing to do and only use the machines to concentrate on certain things. Machines do all the stabalizing for you and free weights make you do it yourself and that helps build a stronger core strength.
You shoud be doing 4-6 exercises per body part depending. If it's a big body part like back or legs then do a few more sets then lets say your tri's. The way I look at it is you want round 10 sets for smaller body parts and 15 or more for bigger ones. Some say it might be over training on some things but listen to your body, if you feel like it's to much then it might be so cut back a couple sets and see how you feel. But don't be one of those guys who one day i a little tired and decides to cut back because he thinks he's over training. Stick it out few weeks and if you still feel that way then cut back a little. You're bound to be tired every now and then.
Remember that your whole body works together. Building your back will in return help your bench and building your bi's will help your back become stronger and lower back will help your squat and so on. So don't just concentrate on the basics.
Core strength is a big thing to have. With it you can increase almost everything else. Squats, deads and bench all build a stronger core strength and every routine should have then in it imo.
Your body will strt to plateau over time and that's when you should change up your routine a little. Instead of doing bb bench switch it up to db bench. Switch up military presses to db shoulder presses. This lets say shocks your system into growing again.
Another thing that is very important is your diet. Honestly you are a little on the skinny side for your height. Eat a good solid diet of protein and complex carbs. With a clean solid diet you will be able to grow and not be stuck.
What it will come down to in the end is you experimenting with your body. If you feel like something works then stick with it and if it doesn't then switch it up until you feel that it does work. It's all trial and error until you get it down.
This is kind of ling but I hope I answered some of the questions in it and if I didn't then just ask!
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