Baby refusing food and always throwing food!

Hiya! I'm really struggling. My little girl is 8 months and really doesn't take to much food - I've tried more of a BLW set up recently but she just throws it on the floor and won't touch it and I don't understand why? She actually does really like food when she has it but it always ends in tears because she just is frustrated with being handed food, being spoonfed everything just upsets her by the end of the meal. Any tips??