Congrats, and welcome to the club. I normally don’t use initials after my name – my email has my title ‘landscape architect’, but I’ve left it off my business card. I figure anyone who needs to know if I have the necessary paperwork will ask, and most should know by job title anyway.
It gets a little hard to decide what post-nominals should sit behind the name (PLA, EIT, CDT, LEED, CLARB, ASLA, A.M. ASCE, Assoc. AIA…) and at some point it looks like fluff.
Fun problem to have I suppose, especially when you just got the stamp/seal.