Seems like there’s a lot for you to learn. I suggest doing some research into the basics of growing a plant.
Are you committed to growing or are you going to grow it on a windowsill?
If so you’ll need a space (grow tent). Lights, carbon filter (unless smell isn’t an issue), extraction, fans, soil, pots, nutrients, jugs, measuring spoons (for nutrients) bottle of calmag cause it’s tradition and of course seeds.
This is a very rough guide for soil growing;
Fill a party cup with soil, plant seed, then spray or water in about a couple of shot glasses. Leave in a warm spot. Ideally under a grow light so photosynthesis can happen immediately.
Day 3 - give it a shot glass of water.
Day 6 - 2 shot glasses
Day 9 - 3…
Day 12 - 4…
Day 15 - Transplant time. Get a big pot 3-5gallon or whatever. Now it’s best to moisten the soil before putting it in the container. I do this by spreading my soil over a plastic sheet then with a watering u can evenly moisten all the soil. You want about 10% water volume of the final pot to properly moisten the soil.
Fill your container and once almost full put another party cup in the middle and fill around it. Remove the empty cup and hey presto, a perfectly sized whole for your plant to go into.
Once transplanted give it about a cup or two of water where the new and old soil meet.
Gove it a good 5-10 days before watering again.
Can up pot again before flower. Depends how big you want your plants to be.
Around the 6 week mark you can start flowering them. Or longer if u want to train them. Do you know how to start the flowering process?
A lot of these answers can be found on basic growing guides and as I continue typing I realise there’s a lot to say.
Have you grown anything before?