Baby screaming and crying before sleep ! Please help !

My 28 week LG was screaming and crying to sleep everyday , she have 3 nap around 45 min to 1 hours at day . Sometimes she drink milk then fall slept at day . Sometimes she crying and I will cuddle her to sleep .

At night she hard to sleep after milk , she always rollover and crawling. So I just let her do whatever she want , when she tired rubbing her eye and make noise I will pick her up and cuddle her . I used to rock her to sleep or just put her on my shoulder and let her rest . This 2 week she was screaming and crying before she slept . She normally sleep at 2130-2300 , so she was crying and screaming in between the same time every day . I am exhausted to put her sleep . Anyone else know what to do??