Winter time sucks. There isnt much to do anyway so it just makes it worse. I spend alot if time playing video games in the winter and taking my dogs to the park. That seems to work pretty well for my boredom. As far as depression, yea I think you should talk to someone. Thats theyre job and maybe they can help you think up some things to do when your bored as well. That way your not sitting around stewing
Maybe think about getting your pilots liscense...