mindset error here is that the false assumtion is that BCH was:
1. bought at 0.18, for there to actually be a loss of 0.13 decline
2. bought at all, rather than obtained for free due to forks and ongoing mining. meaning BCH would actually be +0.05 not -0.13

gotta find it funny how so many people emphasis the "$20k" bitcoin day, as if everyone around the world all bought all of their bitcoin on that day, to now be making a $15k loss as of todays ~$5k

yet reality is that not many people actually bought right at the peak. meaning the peak price has no relevance to REAL gain/loss and is just a meaningless statistic for a history book.

same for BCH the price of a coin is just temporary drama.
same for BTC the price of a coin is just temporary drama.

people dont actually profit/loss from one years temporary drama ATH vs ATL. people actually profit/loss from the cost of the actual acquisition of asset vs the sell of the asset.
in short you never lose unless you sell at a loss