First post here and I'm actually getting braces off in a couple of weeks

but the day after I get my retainers I'm going on holiday, but I don't know whether to postpone my appointment (and the appointment to get braces off) because I don't want to be in pain/discomfort, and I don't want to lisp. Also I'm worried that it'll be awkward having to take my retainer out all the time around new people when eating and stuff (I'm going to a wedding!)
Do you suggest I just go ahead and enjoy the naked teeth or wait so it's better timing?