v quick reply sorry, lots to do but wanted to add in to what others have said.
I have 10 month boy/girl twins. My son will eat anything, my girl is super super fussy and sometimes she drives me mad and will hardly eat a thing all day (just milk and a bite of cheese).
I do about 4 things at each meal, a purree or smoothish thing, eg porridge, yoghurt etc and a couple of finger foods.
With Ellie I've found great success with well cooked omlette, so I add in grated potato, cheese, crushed up peas, etc etc. She'll still not eat lots but will have a few bites and I can get some carbs, veg & protein in those few bites.
I keep telling myself it's a phase. Fingers crossed!