This is such truism. I could be with more attractive girls. One of the more counter productive ways of thinking. I could have ______ (insert anything here). I could have gone the extra mile and got MSc instead of BSc. I could have already bought a house. I could already have had sex with a 10/10. I could already have visited Fiji. I could be already married. You could be _______ (insert anything in the line). When in doubt follow your gut. Do you feel like she is right for you? What does your intuition say? Do you feel like you are at the wrong place with this girl or at a right place? About ready. Nobody is truly ready for anything. I am sure even athletes that spent 4 years preparing for the Olympics are thinking....man I wish I had more time to prepare. Trust your gut.