Sounds serious and hard to advise without specific knowledge of the situation. A private individual can write down losses against their other profits within just one single financial year. So thats April 2018 to April 2019 I think.
This is the economics section and this sounds like an alt coin question, find the ANN thread for the coin you are holding. Use google
Thank you for the reply. This is sort of 'serious,' not too much invested but still turned out to be trash.
I appreciate the note on writing down losses against other profits, I was thinking along that route - my big question: do I have to sell it in order to write down a loss or can I write it down at the value at the end of the year?