Baby’s wellbeing

Has anyone has similar experience? My baby is close to 2 mths old and currently refused to sleep in her cot. She needs to be carried/rock to sleep. When we tried to put her back to cot, she will wake up around 5-10 mins later,the max half an hr. We had no choice but to let her sleep in those infant lounger). She has been fighting sleep so strongly despite being so tired. We also tried to keep her awake during feeding but she will end up falling asleep in our arms. When we removed the bottle after she finished her feed, she will start to scream. We’re thinking that she still wants to suck? Maybe coz comfort sucking? Nowadays notice that she likes to keep sticking her tongue out like it’s nv enough. Is this a normal phase at this stage? Really don’t want to go thru the CIO method because couldn’t bear to see her scream till that extent!! Is this a stage that eventually will pass?