OP, give it a go, but do your own research....constantly do research. Don't just listen to your friends "advice" only, learn about it everyday. Things like Calcium...
Eating fruit first thing on an empty stomach is a good idea as fruit passing through the stomach and is absorbed in the intestine. 20-40 mins usually. I do it everyday. 1 piece of whole fruit...
This is adequate, as long as your form is good and you get a pump at the end. Its also a good idea to mix things up say every 4 weeks. Things like Dips, Cable Crossovers, Plyometric Pushups etc can...