Hi all. Cat mum in need of urgent help. I've a 5 years old female cat (with me for 4 years) and I always wanted a 2nd kitty, but always afraid of my spoiled cat reaction (always thinking if they ever will get along). I finally made the decision and adopted a 3 months old male kitten 1 week ago (from the same rescuer I adopted my old 1). I followed all introduction steps (kitty in spare bathroom, smell swap, environment change, feeding from each side of the door...) and for the last 2 days they were able to be together under supervision, of course with some fight that I tried to distract with toys or clapping my hands. Things were moving slowly, but we were in the good way, so happy and thinking that will work out till today morning. Little guy wouldn't stop meowing in the bathroom at 6am, so I had the stupid idea of picking him and bring to my bed. He was all snuggled on me and purring till me resident cat noticed and attacked him as never before. I had to use water spray to separate them and even got scratched, no cat was hurt. My resident even attacked my legs while I was going to put the kitten in the spare bathroom again. I came back to bed and let them calm down. I feel so bad as I'm thinking that I ruined everything and we gave 100000 steps that may not be possible to make them tolerate each other again. Even worse is that my resident cat no is hissing at me, she never did that before to me before (even while introducing the kitten). As far as I read I should keep them 1 or 2 days separated and then start letting them see each other again thru the door...so start the process all over again. Please give me advice and share some success stories. Breaks my heart to hear the little guy screaming from the bathroom and super afraid that my cat even kill him next time she sees him (if I'm not able to separate them, I think she was not expecting the little 1 to fight her back and he did it). I just don't want to have to return him (I love my little guy so much). Thanks so so much.