Can you help me with purpose and relevance in retirement?

Thank you for reaching out, that is a big change. Not only the distance and moving coasts, but also going into retirement. It can be hard to make that adjustment when you are so accustomed to being busy and working. It must be difficult not enjoying the area too. I find in reading your question that I have a lot of follow up questions, so let me break it down a bit on some options without knowing what you are interested in doing or the exact situation. To answer you question though, a therapist could absolutely help you navigate retirement and finding new purpose for your time. 

-exploring other fields or neighboring fields. 

A lot of people retire and then get bored--- my dad was one of them--- you could always explore a part time role in a similar field that does not require the certifications or even explore something you enjoy that could be a job. It is not uncommon for people to have one job (investment banker) and after retiring they go do a job that maybe they don't need in the same way as before so they can take less hours or a pay cut but its something they enjoy (cooking). So exploring positions that for one reason or another maybe you could not take but that you enjoy and would like to take--- in turn, you could be completely successful in another profession if that is of interest. 

-self-care.

Retirement for some is a chance to work on yourself and do the things you've maybe overlooked while having a career. That may be traveling, picking up a new hobby, volunteering, or maybe the essentials of self-care--- taking care of you. Spa treatments, exercise, eating and cooking better, socializing, therapy. 

-family time.

Another aspect to consider (again which may not apply to you but I wanted to offer) is family. Working tends to be a big factor in time spent with family. So being able to focus on meeting up with those within your family you are close with or would like to be closer with is something some do. For some this may be babysitting and spending time with grandchildren more, for others this may be extended to family you don't see like cousins. Planning family reunions or making pen pals with a distant relative. Even exploring family history more. 

Again, I do not know you or know anything about your life. So these are very generalized examples, but if you are interested in working with a therapist, one could absolutely explore and make suggestions more specific for you. Best of luck!