My Wireless Connection acess in my lop...

hairness of the expert of the experts!

its really strangely wonderful that my Wireless connection acess in my loptap had just terribly gone, and its only the local connection acess is only available to use, but i dont have a local connection here in our house only a wifi. there is no icon or desktop shortcut to acess and to search for network connections. its not really working even the button under my laptop is enabled, yah i cant turn it on and off but i cant find the wireless connection access on it. im in the middle of my bloody work and i need a solution for this very fast, i dont want to take ten years before i can use it again (i mean i dont want to bring it in some technician then wait and spend again some bucks) is that possible?, that i can self fix my laptop? pls explain why and how is that happened and how can we prevent it? hope to hear from you very soon! thanks a lot experts!