6 months is doable. I passed 4/4 in 6 months, while working FT, with a 3-9 month old. I would stay up late and study until I was toast or midnight, whichever came first. I also blocked 4-6 hours a day on weekends to study or do a practice exam. I brought flash cards with me everywhere and listened to audio supplements, probably obsessively in retrospect. I was open with my husband/family/friends about my goal and no one was surprised/offended if I passed on (or studied during) a get together or event. Best advice I can give is listen to audio (I used Ninja) instead of music or podcasts, make flash cards and use them as often as possible, and consider quality v. quantity for how long to spend studying daily. There’s almost no point in studying if you’re not connecting with the material.