Almost 2 months. If you work hard everyday and are diligent, you'll be fine. I did it during a regular winter semester and had no problems. Just do Berkley review and avoid those dumb classes everyone pays incredible amounts of money for. You don't need to pay $2k to have someone tell you what to study when it's all available online or in quality review books.

There isn't much shared in chat that doesn't make its way to regular board posts in a day or two. Plus when you're in chat, it sucks up even more time.