Yes! Patience is perhaps the most important quality when learning...well...pretty much anything lol.
Yes, if you want to have tone that sounds similar to the recordings you hear, nails are probably a good starting point. Keep in mind however, that variations of nail shaping exist and can render different sound nuances. David Russell, for example, uses long ramped nails while John Williams uses shorter nails that are rounded (unless he's recently changed something).
Point is, not all nails are created equal and that's one of the reasons why not all artists sound the same. Not all fingertips are created equal either so the sound can change quite a lot even within circles of no nails players. Find what works for you and seek out your sound
Remember that really beautiful sounds can be achieved without nails - check out some lutenists for proof. And whatever you do, have fun!