My main suggestion...
Do not expect to have 10 lbs of top shelf bud. Make your goal a nice healthy happy grow. For me gardening is just as therapeutic as smoking. Of course I have my occasional... "Oh what the fuck happened" moments. But usually pretty relaxing and very rewarding.
Suggestion number two... Read some grow logs especially of people doing a similar setup. Use the google machine and RIU search. My first grow was laughable. I loved them to death (to much nutes, to much water, to much messing with them. Just let them do what they know how to do... grow). By no means am I an expert but I like to think I have come a long way from when I started. Its okay to mess up in veg you can just keep vegging, lol.
Try to get all your bugs worked out before starting flower. Once you hit flower any harm is pretty much irreversible and will ultimately effect your quality... Remember worry less about quantity and more about quality for the first one. That's my opinion.