I’m not a fan of mudgurads, I don’t really like the look or the wobbly fit, so I don’t use them even in the yuckyest of conditions. I’m not bothered about getting a wet bum, so long as I’m in good training mode and hacking long I jut keep warm that way.
I’d suggest you slam some decent climbs in your rides. Whether they be rep’s of short sharp ones where you do interval up them then do them again or whether they take an hour to climb, just climb more use your rotation and pace to regulate breathing and don’t blow up, just keep going.
I’d also suggest intervals on the road, look ahead, spot a small rise in the road, ride the heck out of yourself to get over it then relax and rotate and bring back your breathing to a reasonable rate, then repeate. This will focus your mind, something that can be a bit of a grind on long flat sections.
I’ve just come back from a 3hr ride around Patley Bridge taking in Brimham Rock, the moors and the long res in the vally floor, it was snowy on top and well slippy but the climbs I added into the ride warmed my up, the decents had to be taken slowly due to the slipy road and water run off, I was wearing a simple marino base layer, 3/4 legs under long legs, a l/s winter top and a thermal gillet and fleece beanie and some cheap thinsulate themal gloves. All in all I was toasty and well comfortable dispite the amount of water being kicked up my bottom..