Timing belt change!Does he still have?

Hello together! I just bought a Laguna, which is still really top! It is year 07.2000 and has just 46000km down. In addition, it is a garage and summer car, which was never in operation in winter. Belonged to a buddy of my grandpa. Now my problem. The timing belt was changed at about 15000km (no typing error) in July 2005. Since then he has driven how to calculate 30000km. When I was in the contract workshop today to get the associated winter tires to me. I’m afraid that this thing will tear me away! What do you think about it? Do I have to put myself behind the wheel every day with fear until this is done? I’m commuting and driving about 100km a day!! Please give me a quick answer!!! Therefore, I’m totally thirsty, and I’m going to have to be able to do it again and again. Oh, the wind!Thank you!