Welcome :) And you'll find a butt load of info on here, and many members are very experienced breeders.
I'm not one, but I think the underlying theme from all of them will be...Make sure you have prospective HOMES for all the potential SPAWN. It's cruel to breed animals without a plan on what to do
with the babies. And there could be well over 50+!
They are very cool & it's fun to watch babies grow, but figure out WHO will take them in
before venturing further. If you are doing this for fun, then most petstores will take them...Probably NOT BUY THEM however...They probably buy them from a big seller for like 25-50 cents each,
but they may just take them from you for free.
Fish breeding seems kinda like any type of farming...It takes hard work, space, & solid (and often pricey) stock. It's not a cake walk to breed a show quality betta that will fetch $20 or more on AquaBid or at shows. Not being negative! Just be prepared.