lip is right, you must read more before you begin.

when you harvest a plant that's it unles you wanna reveg it and take some clones but that takes a while and is only usfull to save genetics imo. i don't know where you heard it but a plant doesn't start making more buds after harvest.

ventillation is ABSOLUTELY NECESSARY if you want to grow indoors. you must be able to keep the temps in the mid to high 70's for good quality bud imo.

nutrients are also ABSOLUTELY NECESSARY when growing indoors. a seed has enough in it to support the seedling for 2 weeks or so then you will need to start feeding it.
lastly be carefull wateruing a plant everyday. mj needs a drying out period. this is when the roots grow the most also if the soil is always moist the roots will more than likely rot and that will cause all sorts of probs.

my advice to you is take a week or so and read as much as you can before you start anything. good luck