Married for 1 year, we hardly tried 3-4 times we both have very low libido,sex drive is very low 2-3 months once we are trying to sex.. But every time we are unable to do it I think my vagina is small, when we try some burning sensation, i feels like urinating while having sex.. pennis not going inside we felt frustrated and stopping.. What to do? We tried lubricant, foreplay also we will do max 20-25 mins..