4 month old not sleeping well


Hi everyone my daughter is 4 1/2 months for the past two weeks she has been waking up more often than usual and has been wanting to skip her last nap of the day. I don’t know what else to do I have tried putting her to bed earlier and later but nothing changes she still wakes up at 11 then 2 then 4 she is ready to start her day. If anyone has any ideas or a schedule for their 4 1/2 month old that works I will greatly appreciate it.