I have a little experience with CBD/THC,the one thing I found is everyone is different and the effects can be different for everyone!
As for CBD,dont get into all the hype,I use an isolate crystal form of CBD thats quite cheap and it's as effective as any of the more expensive formulas. For sleep I use a CBD/THC combo gummie and some tincture.I find the isolate works best if I take it 2 or 3 times a day,first thing when I get up I have a coffee and put a small bad of cbd under my tongue as it's best absorbed sublingual.
Now these auto flower seed,well they work and are quick to grow you get relatively small plants and low yields.If it's legal where you live get a strain you like and buy feminized seeds,these will grow a female plant and you can harvest some nice flower if you grow them to maturity.
I've been luck to have a license to grow 10 plants for a long time,going back to early 1990's but now anyone can grow 4 plants and you see it all over the place,people you would never think are growing it in their yard.
As Bug mentioned you need to heat the stuff to decarb it to make it active for edibles,not difficult and there's a large amount of videos out there that will walk you through the steps to make your own edibles.BEWARE it's difficult to figure out dosages and you can make a batch of too potent{your fav edible} so always proceed with caution. I prefer to use a concentrate to make edibles,it tastes better and it's easier to get close to a certain dosage,1 gram equals 750 to 950 mg of THC,I go with caution and say it's 1000mg and use that for proportions.I make 20 cookies that have aprox 50mg of THC.
Making your own CBD is a difficult affair so I find it much easier to just buy it.
YMMV!
PS: I have been growing the stuff since the early 70's,Never saw what all the fuss was about.