Sorry another question i know nothing about ... I will soon hopfully

Ive dug up my hole lawn and put weed killer down about 1 month ago , Now my lawn is just soil ready for a new and weed free grass hopfully

Question is what do i do now ive a very large box of grass seeds (not are usual kind haha )Do i just cover the old lawn with seeds and hope it grows ive seen ppl put out bottles of water when they put new grass seeds down ...

Any advise will be more than helpful as im out of my dept once again ...Cheers h4l

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Time To R ll That Shit Up