Hi, I started with 5:2 for two weeks then ramped up to JUDD / EODD (every other day diet) about 3 weeks ago. A couple of responses:

No, there's no reason to drink shakes for the first couple of weeks. In fact, on down days you want to focus on two things: (a) filling foods, like vegetables/high fiber/bulk (I do carrots/broccoli/cauliflower/mushroom/onion stir fries alot) and (b) protein - eggs, fish, chicken. The bulk keeps you full, the protein helps you not lose muscle. Everything you're eating is fine, I'd just add in some protein if you can (the yogurt's a good start). The only other change I'd make is that juices add calories because they have alot of sugar; you might want to switch to just water or herbal teas on your DDs.

Weight loss varies hugely from person to person. One thing to keep in mind is that your weight may fluctuate more (alot more in some cases) than you are used to. You're "yo-yo'ing" your body from day to day and sometimes it'll retain water, sometimes it'll dehydrate faster, sometimes it 'stays the course'. Keys are to make sure you drink ALOT on DD's because you losing out on the water that's in the food you're not consuming on those days. Average loss is 1-2 pounds a week depending on how much you have to lose in the first place, with higher loss rates at the beginning (like all diets).

Feel free to friend me if you like...Hope this helps!

Just starting to name what I was doing too. I have been doing this without knowing it had a name. I started by doing intermittent fasting andnaturally came to a pretty alternating schedule. I am averaging 2 lbs a week or occasionally 3. I have been doing this 7 weeks and am about 15 lbs down.
I also do veggies and lean meats on my low days. I feel pretty dang good.

I bought sodium free chicken bullion. 10 cals a packet! Hot water and sip it!totally helps. Also, celery!

Forgot dill pickles. 0 cals and crunchy and help with snacking!