So many issues and variables. You don't give any specifics about your situation, but descriptions of the TSP can be found here:
http://www.tsp.gov/These Message Boards do not exist to provide investment advice, but many users may be able to provide some general concerns and perspectives for you to consider, if you choose to share any more details. (Always be careful about how much information you share online.)
Most likely, the first piece of advice will be to read all the material you have been given on the TSP.