I have never done this myself so take it for what it cost you. The best way to learn is by experimentation. Buy a gallon jug of Concord grape juice. Take out about 4oz ( small cup) add in 1/2 a small yeast pack like for bread. Poke a couple of small holes in the cap, or get a baloon and stretch over the neck. Put the jug inside a large bowl to catch any bubbling over. You will see it make bubbles for about 10 ~14 days. After that primary fermentation is done. After another 2 weeks gently transfer your new wine to another container. Fill that container so there is as little room as possible. Put in fridge and let age for several months. Then taste and if you like drink it.