Nap routine

So my 11 week old sleeps from 12am to 6am and has been doing so since around 8 weeks.

However she's been finding it really hard to nap during the day. She has one nap from 8am to 10am with me in bed but then doesn't nap after that unless in the baby carrier.

I try putting her down every 1 and a half hours. I put her down in her moses basket drowsy, swaddled, with a dummy and white noise. She doesn't fall asleep..if I pick her up she will fall asleep in my arms or in bed with me and then when I put her down or leave she will wake up.

What are you nap time routines for babies similar to this age? Do you have a routine? Has anyone resolved this issue before and if so how?!

I haven't tried the cry it out method as I have read it should be done after 6 months.

But she gets super cranky from around 4pm onwards and I think its because she is overtired.