Do a rollover to an IRA. I believe that you’re young, @Dutchess_III, so the $5K is subject to income taxation (federal and state) plus a whopping 10% federal penalty. But, if you put the funds into an IRA, within 60 days of the distribution, you’ll avoid taxation.
After the money’s in an IRA, you can talk with an advisor and decide how to invest it. Within an IRA, you can invest, buy, sell, etc. to your heart’s content.
By the way, the trustee should have withheld 20% for federal taxes. Yes, the 20% is part of your (currently taxable) gross distribution and, even though you don’t have the money in hand, it’s ideally rolled over. You can’t recoup the funds now, so they’ll need to come from other resources.