What age is best to start weaning

[Sars123]

Hi, I'm a first time mum and my son is 5months. He wakes up roughly every 2 hrs during the night and my husband works nights so I'm like a waking zombie most the time. Everyone keeps telling me to start weaning him but my midwife says to wait till he is 6 months. I'm confused. Will it really even make a difference?

I also feed my little one every threeish hours or so ... she demands it if she doesn't I leave her till she wants it. I think the average is 4 to 5 bottles in the day over 12 hours

Ok going shopping tomoz cos his teat is size one. Although so far tonight he has not woke up yet usually he has been up 3 times by now