1) Android System isn't using 59% of your battery life, it's using 59% of the total amount of battery being used - which could be 1% of your battery life. It's measuring the percentage of the amount used, not the percentage of the amount available.
2) If you turn off Google things, you're pretty much turning off the phone. But Google Services is only using 3.8%. Android System is using 59%, and that runs just about everything else. If this is a new phone, it's going to take about a week for the system to finish setting things up, downloading little patches, etc. Then it should settle down to 10-30%, which is about the norm (depending on what you're doing).
Turn off all the radios you aren't using. (Airplane mode, then turn on only what you need, or turn off everything you don't need - GPS, Bluetooth, wifi, mobile data.)
Get rid of GMail - it's about the worst email program ever written. Try the free ones in Play Store. (I use
Email, but
K-9 Mail is pretty good - and it does PGP if you like privacy.)
Use
Wakelock Detector (read
Wakelock with non-rooted KitKat) to find out what's keeping your phone from deep sleep and
Greenify to stop it, or just use Greenify to hibernate everything that doesn't have to stay wakeable [alarms, email, texting, etc. - which you want to run when there's a message or the time is up, not when you press the icon).
(Make sure you try to charge the battery when it gets down to 40-50% - constantly draining it all the way could kill it in 6 months. They're not that expensive to replace, but why waste money?)
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