How are you going Nat? I have slump days too, with soap, with nappies... but it definitely worth keeping going with your soap because at least you know every single ingredient that goes into it. Plus the enjoyment of actually making it!
but citrus is notorious for that, so it's not like that's your fault. and if yours feels the same as what you got from lush, have a look at what you've achieved without the use of all the extra additives!