Is it possible to delete/rename my forum account?
 

Second-guessing my choice of username, used to be my handle for a great while but I feel like it's time for a change.

If this is impossible to do I completely understand, just wondering, thank you. :)

It is possible, but it is highly unlikely it would ever be done by the people that have access to do it (admin+ access required).

You can easily just register another account with the username you want to actually use. It takes almost no time to do so and requires no work from admins here or waiting and asking for something that would probably never be done.