Congrats on your plan! As long as you stick with it, you should do well.
Some tips? Make sure to sound professional and competant at all times. This includes full punctuation and spelling when you talk back and forth. You'll only be 16(if you start selling in 2 years) so you want to impress folks with how mature and serious about this hobby you are.
If you hang around and keep talking with folks here, and show everyone how commited you are to the snakes, then you're sure to have no shortage of customers when the time comes!
Good luck and good for you for planning ahead!
Wolfy