All coins right now have been falling deeper and deeper but if you still want to invest your money with coins than withdrawing and using it with other stuff. What you can do is you can keep investing with your coins ETH, BTC and etc.. It is really up to you but if It was me I would cash out or use the $5000 to buy whatever I want then with the other half just invest it again until you can earn $10,000 again but then that is your coin this is just in me when I do have that kind of money but I don't. It is really up to you, keep investing surely the coins will go up again soon.