It’s a bit like the old Irish joke about the chap asking for directions, and he’s told, “I wouldn’t start from here in the first place”. If I was starting carp fishing, I wouldn’t start this time of year, and I probably wouldn’t start with carp fishing. But I guess it’s easy for us to say that, and it’s entirely up to you when and what you start at.
I’ve been doing it for years, and I was recently on a run of 5 blanks, which I only ended by cheating, and going to a local little runs water. You’ve go to realise that 150 hours without a bite is not that unusual this time of year, especially if you’re fishing a water you aren’t familiar with. You just need to keep plugging away. Try using Cell fresh frozen boilies, they’re pretty reliable at most places. If there aren’t too many other species in the lake, scale down the bait size, and reduce the amount of ground bait you’re putting in, as carp don’t need much to survive at this time of year, and try to find the fish. Look for signs on the surface, look for features. Carp are a lot more mobile in the summer so, to a certain extent the fish might come to you, but that won’t happen in the winter, you need to find them.
Good luck.