A real mentor will help you understand what is really going on in the Forex or Cryptocurrency markets so you can profit. If your teacher does not help you they are not doing their job. No one can teach you to become a 100% winning trader all of the time, that is not what trading is. That is a fantasy world. What you need is for someone to help you understand how the big players operate and what you need to do to prosper in that environment.
Apart from the entry/exit rules and optional money management guidelines, strategies are often characterized by the list of trading tools required to employ the given strategy. These tools are usually charts, technical or fundamental indicators, some market data or anything else that can be used in trading. When choosing a strategy, you need to understand, which of the required tools you have in possession.