The problem could be that you expected a direct transition between both sectors without seeking out to learn the fundamentals of the new one. Knowledge of cryptocurrency or fx trading does not translate into knowledge of the other and the be verturung into either for the first time would need to do lots of studying and practicing regardless of their experience in the other.

You shouldn't be investing a lot of money into something you have not properly adapted to. The same process should be applied for a completely new trader; do your research, practice on demo, pick a strategy and start small.