Part Time as Real Estate Agent

I knew that selling houses is a hard job but i never thought it was really hard. It's almost a month since I started working as a real estate agent and til now i still don"t have a buyer. I don't want to lose hope but some part of became really frustrated about it knowing that your team mates already sold 1 or 2 houses and me, none.. I know I'm just a starter but I've been working really hard and nothing's coming back at me. I don't know if I'm doing something wrong or maybe it's not yet time. I just hope one day someone will buy a house from me..any suggestions?