Hopefully all your worrying will be pointless and it will turn out great!!!

I know you've mentioned before you don't have a video monitor but I love having mine for this exact reason! I actually have 2 lol. One is a mini tv monitor that sits in my living room and the other one is a handheld one with built in walkie talkie....I LOVE it!! Just last Friday I saw my 3 yo boy standing and kinda bouncing around, I asked what he was doing and he said he needed the washroom so I told him to go! Lol. I tell them every day when I tuck them in that if they need to go they can just go and than come back to bed but my 3 yo girl never has to go and he normally just pees his pants....so I'm glad to see that we're maybe over this soon!

Anyways, having the handheld allows me to do my things during nap without having to go down every 20-30 mins to check on them (dc centre habit that I still have lol)

Good luck, I hope today is going well!