You're Roth is not currently funded at all.
This is an older post so maybe you learned in between now and when you posted, but the TSP Roth DOES NOT count against your $5K Roth IRA contribution limit. The "Roth" term confuses the issue.
You can contribute $17,500 to your TSP Roth (the annual 401K contribution limit) and $5K toward your Roth IRA outside of TSP.