Ditto that.
Most smaller company 401k plans have a bunch of crappy funds (i.e., high management fees), with a few index funds buried/hidden in the list that are lower cost. If this is your situation, job #1 is to crawl through the list of funds and find the one or two relative gems.
With 11k, what you want to do is pick the cheapest SP500 or "total stock market" fund with the lowest management fee and stick all your money in that fund.
(With that balance, I am assuming that you've got 20+ years to go before needing the money. There's really no point in diversifying beyond stocks until you are within 10 years of FIRE.)