2002 Audi A4 Power Loss/ No Acceleration

I have an Audi A4 1.8T 2002 model with about 190,000 km on it. I don't even know where to begin or how to explain it but I will try my best. Starting up the car is fine with no problems, no idling shaking or any of that sorts, its when I press on the gas pedal. Its fine till before the 20-30 km/h mark once after that the rpm's redline and the car is still at a constant speed so there is no acceleration. Even when I press hard on the gas, the RPM's still rev's with no increase or spike in speed. I don't know if it could be a power loss or its an old model or even the turbo isn't functioning. Any help would be greatly appreciated because I don't want this to later become a huge disaster if lets say I go somewhere on a road trip with the family and then it breaks down and stuff. Thanks guys!