ive had hiking boots for about 3 or 4 years now and i been wear them for about 4 or 5 months out of the year pretty regularly. Ive been wearing them in the winter for this is my 3rd year wearing them regularly in the winter. This year, my feet have been cold when i wear them(they are usually warm or at least comfortable) and my feet get wet now and i think theyre just not as sturdy as they used to be. I dont really know how to explain it though. Do i need new boots? Or what can I do to make it so my boots are like they used to be and last longer?