I think you are gonna do what you want to do. I also think you've received some awesome advice here so far outlining several different ways to accomplish your goal. You can grow it indoors or outdoors; you can grow it big and fast (large operation= large risk), you can grow it small and steady (indoors and stealthy=less risk); you can grow it at home or on some other property (unless you have a lot or rural property, large outdoor gardens may be risky, however a stealty gorrilla grow may be a valid consideration).
A serious consideration is your family situation. Your gf is moving out, so it will only be you living in the house... cool, it is your risk to take. You know that this residence is known to the PoPo, so you really shouldn't be growing here. Consider waiting until you get into a place that is not connected with your family... if they aren't in the place they will be somewhat protected from the decisions you are making in this situation.
You also should consider the suggestion about decreasing your consumption. There are a number of different ways to enjoy your weed that will both increase your enjoyment and decrease your consumption of your pot. I like to smoke one-hitters out of a clean, glass bong... that's nice. Or sitting outside by the pool smoking a J is great.
I'm not trying to be a dick, but you should really check out this thread.
https://www.rollitup.org/legal-edge/59805-how-survive-prison.html
Consider all of your options, be very careful and good luck!
~rock~
