I know that some people experience problems in winter such as lower energy levels, feeling sad, etc. To all those people I want to say that there are indeed some things one can do in order to feel better during this particular time of year, which can be very enjoyable indeed provided that you want to make it that way.
Try to look at some Cozy Winters Review to see what you can expect in terms of making winter more enjoyable and you should have more experience making that happen.