“Not growing up” doesn’t necessarily mean — “don’t do adult things.”
I’m not sure if I am more afraid of the fact something I wrote could impact your relationship or the fact you’ve gone straight to “another couple of years.”
That’s a long time.
A week is a long time.
A day is a long time.
If I could be so bold, that two year condition makes it seem like you’ve already been entertaining putting off the wedding for a while.
Marriage has been too good to me to say “Yes Richard! Run! Pursue your dreams! Be your own person!”
Postpone the wedding or don’t; that’s your call.
But as a married man, I can indeed tell you my wife has interfered with my ability to spend gobs of time alone in my work.
I can also tell you she is a huge reason I do the work in the first place.
Best of luck whichever way you turn.