First-time buyers are finding it tougher to buy a home as interest rates and other costs associated with mortgages soar. Mitch Roschelle, managing director of Madison Ventures+, says it's the worst time of the year to buy a home, with rates on buttress mortgages at their highest point since last November. He expressed his concern in an interview on the Fox Business Channel's "Varney & Co." The average rate for a 30-year fixed mortgage is 7.375%, and Roschelle expects those rates to rise, adding to the struggles of homebuyers.