Think I’ve made some bad habits, now I’m worried!

[Dove88]

Hi, this might be a long one, sorry!
my DD is 5 months old. From about 4 weeks I fed her to sleep then put her into her next2me crib and she would sleep for a couple of hours at a time.
That changed at 3.5 months. We originally had her Moses basket in the next2me so that it felt more cozy, she’s now too big for that but since taking the Moses basket out she won’t settle in the next2me. I’m not sure if this is what’s caused the change though as it obviously aligned with the sleep regression.
Other issues are: at 3.5 months we all got covid, we were exhausted so I started co-sleeping just to get some rest.
Since then I’ve had an ear infection which requires me to put ear drops in and lay on my side for 20 minutes. DD would fuss during this time so I ended up continuing the co-sleeping.
I also pretty much exclusively feed her to sleep. I know so many people say this isn’t a problem but I feel like it might become one.
Anyway, I want to get her into her own room in the next few months but I know that’s not going to happen if I can’t get her back into the next2me.
If I feed her then try to move her she’s wide awake and will just lay there playing in the crib until she gets fed up and cries. I end up just bringing her into bed with us. My DH gets up at 4.30 so I’m conscious about not disturbing his sleep.

The other issue I have is the timings for sleep. She used to fall asleep downstairs with us at half 7/8 o’clock. Then we’d carry her up to bed when we went. My plan was (once she’s old enough to sleep on her own) just do the bedtime routine at half 7 upstairs. However the last few weeks she’s been wide awake until half 9ish and would happily sleep til 8 in the morning (waking up throughout the night) The thing is I need to be up with her at half 6/7 as we have a farm so she needs to come outside with me to do the jobs.

She naps at around 11am, 2pm and again at 5.30.
I don’t know how to change these timings though! Naps and feeding are very much baby led.
If you’ve read all this thank you so much! Any advice is greatly appreciated

It’s so difficult to know what’s best with sleep but I don’t really believe that habits are formed and fixed forever. I fed my oldest child to sleep every night until she was 1 - I know the prevailing wisdom calls for babies to be put down “drowsy but awake” but she never got the hang of that until she was able to engage with a bath and bedtime story instead. I worried. I shouldn’t have - she’s a great sleeper now and I had lots of comparatively easy snuggly bedtimes instead of battles. But it’s also not wrong to try to change things if they work better for you.