A girl is planning a backpacking trip to Europe for two months. Any good suggestions?

Be sure to prepare sufficient funds, and many problems will be solved with money;

Doing a good job in raiders can save a lot of time;

Self-defense, you can buy some anti-wolf spray or something. The public security in Europe is not as good as that in China. You must have some means of self-defense.

Prepare emergency contacts and be ready to take corresponding measures when receiving emergency calls;

It takes courage for a person to travel in a strange place, but it is recommended to travel together if possible.