If you want to race, I would strongly suggest that you join a team or at least a club and ride in a bunch for a while. A team is best because you can learn from the racers when it's off-season and they have time to take care of newcomers
And besides, many teams will refund your entry fees when you race, and sometimes your license - and if the team has funds or you are doing good you can get tteam clothing for free, and special pricing on custom or semi-custom frames. A lot of good deals!!!

There's a local team in the Woodlands, I think you can ask the bikeland shop and they can direct you to the club.
Also, southwest has a racing team, they meet off of the Kroger on hwy6 and W Airport on the weekend mornings, if you google southwest cycling club or first colony racing you should find it.
Gulf coast cycling also has a racing team but can't remember where they are based, try searching GCCA, the Methodist Hospital is one of their sponsors.
Another couple of groups in the area are the tilson homes racing team that I don't know where they meet (I can find out if you like), and the bay area cycling (the club meets on weekends at the shop on hwy3 and Bay Area blvd).
The various bike barn stores may have a racing team too.
One way to meet some racers and learn about the different teams is to go to Memorial Park on the Wednesday nights for the crits. Many people race there.

There's other racing teams around here but right now I cannot remember the names on top of my head...
Good luck!