There's no good or bad reason. If you feel it's a good reason then it's a good reason. It doesn't matter what other's reasons are. All of us got here 'cause of many reasons. Some reasons everyone can understand. Some look like a minor inconvenience to all but themselves, but that doesn't mean it's wrong.
Doesn't matter the season or what is the reason, if you want to cbt and it's your choice, then the reason you've got is good enough.
I mean just look at me, I don't even know why I want to cbt. Just that I don't want to live for much longer.