Should I discontinue daycare and focus on school readiness?

hi everyone. My 3.5 yrs old daughter started a new centre based daycare this week. I am sending her only for a couple hours yet, the drop offs are harder. She is acting weird in daycare, pulling other kids hair, or hugging them too tight, and worse of all, she played with her poop there. She has not done this in a year or so and I am wondering if she is getting anxious or stressed and that’s why doing these things? She is supposed to start preK in September with a support and I am wondering if I should just give up the idea of daycare and instead focus on school for September. I just do not want these behaviors to get worse and then have problem in school. She does have some violent behaviour at home but we practice gentle hands and honstay she does very good if she is happy. Yesterday she spent whole evening crying over things after I picked her up from daycare and poop accident. She has good receptive language and I am sure that she understands other people’s emotions can sense that she is perceived as trouble kid. What should I do? Super confused.