Mentorship can come in many forms. It can come from trusted colleagues that are on the same path. It can come from leaders that have already achieved success in the areas of life in which you want to succeed. It can come from readings or workshops that are limited to shorter periods of time in your life and it can also come from memories.
When we least expect it and only when the time is right with the lesson be revealed or the wisdom received. You will have many teachers in your life. Make sure you protect yourself by watching what you read, what you listen to, what you watch and who you surround yourself with. Write down what you learn, as often as possible.
I pray your teachers bring out the best in you. You are meant for greatness so surround yourself with it.