Honestly the best advice I can give you is to just do it! Sit down and write. it doesn't matter if it's good, or bad, or not coming together. Don't give yourself an out or an excuse about the time not being right. The time is going going to be perfect, but if writing is something that you love to do, then just DO IT! It doesn't have to be amazing, or this perfect book that everyone loves to read,,as long as you love it and you feel accomplished that's all the matters. Chances are if it touches you, it will touch at least another person. Just do what you love.