I'm the kind of person that, when I get into something, just delves into the topic and will spend a lot of time just researching. Foxes is one of those things so I have looked into what you need to own one and I suggest you do as much as you can before making a decision.
And no, it's not bad that you do that when sad. As long as it makes you happy and doesn't hurt anyone it's perfectly fine. You really should look into Siberian kittens or other hypo-allergenic breeds. lemme link you to pictures just to get you smiling.
Kitties!