There is no way to avoid loss occasionally when trading, if there was then it would be guaranteed profit and everybody would be doing it.
Although if you DYOR and pick projects with real potential then despite the risks you can make  serios money.
For example TemTum is going to be announcing it's partnership with multiple nations to provide them with their blockchain as a backbone for their own stable national currencies.
once the announcements are made to the press, post-corona panic, I can see TEM going $1+