THC w Ill definitely get you into slumberland but you must be very careful on the strain you get.
Some can be energizing unless you smoke too much better to get a strain that is primarily used for relaxation and sleep.
I have been growing for about ten years I started using bag seed (seeds found in the bottom of your baggie) cuz it was too expensive and risky buying from overseas. Once states started legitimizing seed companies were popping up all over.
Canada really helped you can buy seeds from there and no customs. From those online seed catalogs I learned which strains were best for what.
I currently use Growers Choice seeds
https://www.growerschoiceseeds.com/
If you go there you can see what strains do what its in the description of the plant the seed grows. Im switching to a new seller for my next grow. Seed Cellar. Nothing wrong with GC Seed Cellar is in Jackson I try to support Michigan business when I can. They also have great descriptions of the strains and effects. Only one warning.
https://www.seedcellar.com/
Different breeders will brand their own seeds even if the parent genetics are the same. You have to get the names of the cross strains and compare across breeders that way. Not perfect but it gets you close. Then when you go to the dispo you can tell them what you want and they may be able to get you close or right on.
Sorry for the long post... I was trained to grow by a MM caretaker... he installed too much knowledge and taught me how to spout it out.