Messed up my sleep schedule, bad

I work nights. But on days off I usually have a normal sleep schedule. Anyway some how I ended up messing it up and now it's a struggle too get it back. i go-to sleep at 10pm-11pm and am up from 1am-7am. (no phone just laying) Sleep for another hour or two at 9 till 11am, then want to nap around 2pm.

It's a horrible pattern and makes me not want to leave my bed or get anything done.

I'm use to working nights and don't plan on changing that. But I'm just venting. Now I must nap.