Most people shape their nails so that there is a ramp starting at the " left" side of the nail and slanting up to the "right" side. (That's not anatomically accurate but we both know what we mean.) The string contacts the nail/skin junction and slides up the ramp to the release. If you are serious about guitar, you may want to check out either a method book like Aaron Shearer, or Pumping Nylon, which will explain about nail shapes, hand position, finger strokes, etc. It seems pretty clear from your comment about long-term confusion that you are learning guitar in isolated circumstances, which can be very hard. Give yourself a break and get some authoritative info, and good luck; have fun.
The basic thing about playing the guitar is the pleasure you get from it. There's nothing wrong with pleasure is there?