Raising Prices

I have a few private clients I work with and have for years. I usually only raise my prices by about $5 a year.  I used to see this couple in my office and, after COVID, I now go to their home and don’t charge extra, plus I didn’t raise my price this year at all.

Now I’d like to charge much more than I am charging them, and I’m starting to resent the appointments, due to no fault of theirs.  I am just under-earning for that session.  I’m currently charging $100 an hour.  I’d love to charge $225 an hour, but don’t feel confident to do so.  I’ve thought of raising them to $150 and that would feel better, but I am even shaky about asking for a $50 raise from them.

Any advice?  What thought work can I do to make this transition?