There are a lot of people in my area who are single, and are in their mid 30's, and a few that are even older (like 40's), but they don't seem to mind. They are doing what they can to serve Jehovah, and they have focused on that first and foremost. Some are Pioneers, others have gone to Bethel, or served where the need is greater. There are others who got married around 30 or mid-30's, but they have put their focus on serving Jehovah first, in their younger days, and the blessing of finding a marriage mate seemed to follow. As long as you are following Jehovah's direction, and serving him to the fullest, then the blessings will be sure to follow.