Hold for long term is best thing to do for now, but we have to choose good coin that have strong fundamental, like LTC, EOS, TRX, XLM, XRP, BNB. in 1 years all these coin has potential to raise more than 10x because the market cap still low and the price still undervalued. Second thing is keep patient waitimg for bull market is key to recover loss.
I don't think so after the last failed incident I received, it was a downward spiraling spirit with ever-decreasing prices. I could not stand it and sold it when there was a glimmer of hope that it was possible to remove it a little from failure
Why don't you look for altcoin, but for trash, check to see if those projects still work. Then buy them cheaply and wait a few years to get back what you've lost. Otherwise, you will not make too much loss for such investments