18 and ttc

Hi I’m 18, from U.K. I have been trying to conceive from November 2018 and nothing yet. I have been with my partner nearly 2 years and have been living alone together for nearly a year, I’m paranoid one of us is infertile and I’m curious as too any tips anyone has, I am currently taking the pregnacare conception vitamins daily and cutting down smoking a lot. It’s my peak day on the 13th February. I’m so freaking paranoid. ANY TIPS OR SUPPORT WOULD BE WONDERFUL AND IM JUST SO SAD ALL THE TIME as we decided we would like to try beginning of 2018 and waited until we had our own place and stable jobs (which we both have now) I feel like I’m hopeless!!