6 month sleep regression help

[Sparkle88K]

Hello 👋 I am looking to see if anyone has experienced the same sort of sleep regressions & can offer any advice or tell me it gets better!
I am a first time mum & my DS is turning 6 months this week & is going through what I think is another sleep regression.
He's been stirring every hour the past few nights. I can usually pop his dummy in or rub his tummy & he will fall back to sleep. If he is fully awake, I'll get him up & give him a bottle & he'll go back to
Sleep. He's awake for the day at 5/5:30am.
He's still sleeping in his next to me at night & we started day napping him in his cot a few weeks back, he's good at napping in the day.
He had a really bad 4 month regression that lasted 6 weeks in total. Poor baby was waking up every hour at night time but that eventually got better & he started sleeping in 3-4 hour blocks again with the occasional night feed.
We have just started weening last week, he's having a bit of baby rice & either pureed fruit/veg to see what he likes, it's going well so far.
I don't know if it's causing an impact on his sleep. He's teething but bottom teeth have not cut yet.
Maybe it's time for him to sleep in his cot at night, however the thought of getting out of bed every hour to go to the nursery makes me want to cry. I don't know if it's all my fault & I'm just failing miserably.
I'm absolutely beyond exhausted & hoping this regression won't last as long as the last.
How do you cope in the day with very broken sleep?

Firstly, it’s not all your fault and you’re not failing at all. Baby sleep is complicated and impacted by so many different things… personally I try not to focus too much on “regressions” (Google any month and it will tell you there’s a regression happening!!)
Obviously take notice of what might be causing poor sleep so you can fix if needed e.g. too cold/hot, pain, too light/noisy etc. But honestly a lot of the time it’s hard to work out! Sometimes it’s developmental, sometimes it’s just big experiences (e.g. solids!), sometimes it’s a growth spurt etc etc. and we can’t do a lot about these things.
It’s really hard but you are supporting your baby as best as you can and that’s brilliant. My DD (14 months) still isn’t great at sleeping. I co-sleep, I fed to sleep, I rock, I put her in a sling still!
If I’m struggling with sleep in the night I try and rest in the day (when baby naps) or ask partner/MIL to look after DD so I can get a rest. Is there anyone who can help you here? Or can you rest when DS is napping?