it takes a long time to become a slave and that depends on the Dominant that you finally find to spend the rest of your days with.

Take your time... explore the world around you. As jeanne said do not fall flat on your knees at the 1st Dom to come your way. Take the time to know the man before the Master. never rush into something that might harm you.
find yourself 1st and once you realise exactly what it is you are looking for then you will be ready to find the right Dominant for you.

on a final note dont be too disappointed if you dont find the Dominant straight away... all good things come to those who wait

best of luck
cg