If you are just learning then I suggest you strive for even stitches regardless of the number. Evenness is more important. With practice you can always improve for smaller stitches. Don't get frustrated at not being able to do the "expected" or "standard" number at first.
A good way to practice is on 1/16" or 1/8" gingham check fabric. Has lines and spaces to follow. 4 even stitches to the inch is ok at first. Then practice for 6 even stitches etc etc.
Also, don't fall into the trap of assuming that you MUST use the smallest needle. Start with the size you are comfortable with and then go smaller and smaller as you gain confidence.
If you are using a hoop I highly recommend the No-Slip hoop that you can get at JoAnn's. 14" is a good size. It is made so the fabric doesn't slip once you get the right tension for your qulting.