Use online exchangers to exchange cryptocurrencies. The BestChange service will help you quickly find favorable conditions for this. Here on BestChange https://www.bestchange.com/tether-to-dollar-cash.html you can see the offers of different exchangers for usdt to usd . This is an excellent opportunity to compare the conditions in different exchangers and choose the best offer for you.
On Forex it will be very profitable for you to sell or buy cryptocurrency. Here you can track Litecoin / US Dollar quotes charts using the RoboMarkets broker https://www.robomarkets.com/beginners/info/charts/cryptocurrencies/ltcusd/ and other currency pairs to choose the best period. Trade cryptocurrencies at RoboMarkets at any time convenient for you.