Yeah, if you don't already have a blender, that is something I'd highly recommend you pick up. I used mine several times a day to make milkshakes and smoothies. I also own a juicer, but if I could go back now, I'd spend the $$$$ on the Vitamix and not buy the juicer, so I would only need one appliance for both juices and milkshakes/smoothies plus whatever else you can make in those things. If you don't want pulp in your juices (closer to those made with a proper slow juicer), you can always strain it out.

The high fat, high dairy diet was bugging me too, but it's tough to get enough calories without it. I made sure that I increased my protein intake (mostly with protein powder) and drank my veggie/fruit juices to try to balance things out a bit. Try just taking a day or two off the Boost and milkshakes, and make some higher calorie smoothies with a bunch of frozen and fresh fruit, some water and/or juice, protein powder and whatever else you have that you might want to throw in there. At points I had trouble with things like chia seeds. After a day or two away from the constant dairy, I could go back to the creamy stuff and it would be tolerable or even enjoyable again.

There might be a few ideas you haven't thought of in this old thread, which might not show up on the forum list depending on your settings. Once I could eat more than liquid, I was really craving carbs, so I was eating pasta (the smaller pieces, of course), soups with small noodles in them, pancakes, cream of wheat, etc. Rice took a little longer for me because they're slippery little buggers that slid over the hump of my new tongue and made me choke. Be careful and go slow. I know it can be irritating to have to take 45 minutes or an hour to eat a meal. Sometimes by the time you finish eating, it's time to start eating again.