GET A GROW UNDER YOUR BELT BEFORE EVER WORRYING ABOUT YEILD!
MJ is a weed it will grow anywhere, under any light, in any dirt, with very little water.
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Ask yourself, WHAT WOULD MOTHER NATURE DO?
Does she know the ph of her rain water?
Are the light cycles constant?
Does she add Nutes?
Does she add mollases?
Are there light leaks? Does she "hide" the moon to stop hermies?
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understand that you can go up to a week without watering again, in fact do it on purpose because this will let you see the plant tell you it is thirsty and teach you how to understand the plant as it says what it wants
read enough to know that if they are stretching you need to move the lights closer
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start over and learn from our mistakes.
and don't stress over it, simply do it, watch it and learn
Once you get that first grow out of the way start playing with the tweaks, slowly and easily.
And here is some advice you may never hear
experiment on your males!!! I see all the time post asking are males good for anything,, the answer is YES they can be smoked (they have thc too) you can collect pollen and make seeds, you can create your own breed and you can PRACTICE topping, LST, supercropping without worrying about causing any harm
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growing should be related to relaxing, don't stress, fret or worry
One more bit of advice, with relation to strains a VERY BIG NooB mistake is to grow more than one strain at a time as they act and respond differently to things. Do one strain at a time till you learn it, then learn another one. Once you KNOW them it is ok to grow as many as you want together
Good Luck