The manager and the map
You absolutely need a manager to create a UX map. The good news is, you are one. Even if you only need to manage yourself, that still counts as management. This is the reason why Richard Templar split The Rules of Management into two sections: Managing your team and Managing yourself.
The even better news is that experience mapping is not about following a set of rules and constraints. I hope that you don't take my book as a collection of rigid rules and UX dogmas. Yes, I had to give you a few rules, for the same reason as master painter gives rules to their apprentices. However, now it's time for the most important rule of mapping.
Note
When creating user experience maps, you need to keep an open mind and innovate. You create maps to understand and communicate experiences. For this, you need to continuously rewrite the rules of mapping.
This means being passionate about your maps--create outrageously bold maps. Being obsessed with experience maps is great, but it's...