Moving in with my fiancee

Im so scared to move in with him.. You have no idea. Lol we're in a long distance relationship.. So i see him like two times a month cause of our busy schedules. Whenever i visit him.. Its just so different..you know cause im not used to this area. . its really out of my comfort zone &im gonna miss my mother so much lol all this is making me second guess it but i know i have to let go eventually. What would u do?