Hey guys.
I'm totally new to these things. Probably these has been mentioned in previous threads but hopefully someone might guide me.

First thing I do when I reach the gym is 2km on the thread mills.
Then as follows (which might not be according to sequence)
1) Squats 2x15
2) Steps 2x15
3) Bench Press 2x15
4) Seated Row 2x15
5) Seated Press 2x15
6) Assisted Pull-ups and Dips 2x15 each.
7) Stretches and Prone Brace for as long as I can.

Then I finish of with 3kms on the threads.

Been doing it daily since it's holidays.

And my food intake is something like this:
Breakfast : Milk and Cereal with Fruits (Banana/Kiwi)
Lunch : Sausages/eggs + Veges + Toast (with minimal oil)
Dinner : Varies but I surely put carb + protein + fat into it. eg: Spagetthi
Supper : Yoghurt with fruits, not the fruit yoghurts but diced fresh fruits.

I binge like crazy with chips, peanuts etc. More so due to World Cup. Damn.

Am I doing it right?

How do I know what is the proper weights I should be using?

Thanks