If you haven't already sold your ALTs simply hold if your project is decent. If the project has no future sell and buy into a decent project. This is all you can do to recover your loss without putting in more money. It will probably take a couple of years to recover your loss!
Some ALTs will never recover from this crash!
It is an ugly situation!
true as you have said ... we cannot hold Altcoin for too long time in our cryptocurency wallet, especially on Altcoin that does not have a good future in every market ... then when you sell the coin then buy another Altcoin that has the future is better ... because with that we can get back the benefits of altcoin ... and hold on to all Altcoin that have good times.