DD2 was terrible a couple of weeks ago, gagged on half the stuff I gave her, and had next to no hand co-ordination. I was tearing my hair out! But the past couple of days, she's really getting the hang of it and had a good go at some roast potato, carrot and chicken yesterday.
I found easily disolvable biscuits like the Heinz baby biscotti or even sponge fingers help with this. (sponge fingers are very sugary though!)
Can u not just eat thinks like Mac and cheese, jacket potatoes, stew, fish pie etc which is easily mushed with a fork .? Get in some bananas when u get there as they easily mashable too. Can u take a hand blender?
If you don't want to eat early with her then maybe just mash up left overs of an evening and she can have that for lunch/tea following day. A jacket potato would do her two or three meals if mashed up with Tuna and cheese. Steve with mashable veg like squash or sewed or celeriac. Stuff u can have too but can "adult up" a bit with some nutmeg or something
We were in a similar position when DS was the same age. First hour of our holiday DH unpacked whilst i sorted DS' food for the week and stuck it in the freezer in the lodge. Had taken some pre prepared fresh mush with us in a cool bag. Did some veg and chicken mush whilst he unpacked... Easy and hassle free. Depends how you're travelling i guess.