1) Take The Druid Path self-study course.
You can get a copy at HERE.
2) Read Stranger In A Strange Land by Robert A. Heinlein
(it’s available in pdf on the download).
3) Acquire a Seren Derwydd pendant for your initiation ritual into 2nd Degree.
Get one HERE
4) Arrange for an initiation ritual, either with your AD or over the phone or in chat with a 3rd Degree.
(Note: If you are a member of a Grove, your seren derwyddd will be gifted to you).