hacked off

Hi, im really looking for a lot of help, im new to posting on car forums. I have a C8 that is a 03 plate and ever since the day we bought it we have had a shed load of problems, looking through the pages here it seems im not the only one. Anti Pollution fault, Diesel Filter That little engine light that never lights up Seats not folding Diesel Filters Throttle butteryfly Air bag Electrovalve EGR Valve Hand brake cable Spare wheel carrier I believe my car is dangerous to drive, 2 weeks after leaving Kendal Citroen it is guranteed to be faulty again, i took it to Kendal (100 mile round trip) around 20 times during its warrenty year. Around the two week mark i start losing acceleration, it begins slowley but by the 3rd to 4th week i struggle to make 30 miles per hour foot to the floor in second. Im lost, upset and downright hacked off. now i dojnt know what to do, i feel im taking my childrens lives in my hands when we go out. it is dangerous trying to accelerate out of a junction. it is no exception to say that coming out of a junction straight onto a hill that i could walk faster up it. please help, point me in a direction where i can either get the issue fixed or complain directly to Citroen thank you