Find and prepare to exploit drama in everyday occurrences and situations. Use your own life to discover these areas. If you are a teacher, come up with a series that delves into complicated student affairs.
Partner with a comic. Practice writing comedy for him as your potential host since humor is so important to reality TV.
Have an ashtray ready for burning those piles and piles of rejection letters. Any writer in any field will have to toughen her skin to succeed in this career.
Lean towards ideas that involve small crews and are inexpensive to create. Shows that require insurance and overseas location shoots are more likely to be turned down no matter how good of a writer you are.
Compile a teaser film to introduce the most interesting real people that you have in mind for your show. Keep this film to under 5 minutes. Show off your best talents as a writer.
Woo a seasoned producer who can add credibility to your reality TV show. If a big name is attached, a network is less likely to overlook you as a new writer.