How to last longer?

r/

That’s not exactly my question but I was trying to make a short heading.

I usually never have a problem lasting 30-40 mins but since my fiance moved in and we are sharing a bed a haven’t been jacking it and bc she was on her period she wasn’t in the mood. Then today she was and I only lasted 10 mins. She still got her peak so it wasn’t bad but how do I talk to her to either have sex more often so I can last or have some time to jack it so I can last.

Also what do most people do?