Research is key (; I'd say hold off until you've researched thoroughly. Breeding bettas, while highly enjoyable and wonderful to do, takes quite a bit of work. Even the most accomplished owners end up having trouble. Wait a couple months and study up in the meantime. You might want to try breeding with higher-end bettas, to create beautiful fish with good lineages, not pet store bettas who have questionable backgrounds and probably will creature multi-colored "mutts".
Remember that each baby betta, which if you get lucky could be around 100, will need it's own house eventually, or else there will be chaos. It'll cost quite a bit of money (at least 100, most likely more) and you'll have to have buyers for them, or you'll end up with 100+ bettas! Good luck! Take this seriously, though, since we all care for our fish very, very much.