So I would usually dilate laying flat first and then start with the basic missionary position very slowly. Once my partner was able to get it in almost fully we would switch to me on top. The dilators are very stiff so any movements with them I always found challenging. Also something that may be helpful- Dr Pacik suggested a long time ago- he told me to use the dilators and either have my partner or alone ( maybe alone first) try to use them as pleasurable either with a vibrator or your fingers just so there is not so much negative connotation and “work” associated with them. I tried that a few times and it helped me relax once I was with my
Partners and I was able to actually enjoy sex.
As for the lube- it’s sooo hard to tell how much you need isnt it- lol!