Starting to Wean

My baby boy turns 6 months at the end of the month and he seems very ready to eat. I can’t eat anything if he is around as he will stretch his hand and fuss. He is exclusively breastfed: directly when am at home and when I go to work he feeds from the bottle. Problem is this last week he is refusing the bottle and wants to take milk in a cup. Is it safe?

What do I start weaning with? Purée? Solids? Cereals? Am so confused being a first time mum. Am being told so much contradicting information by my family. Each one has their theory.

What did you guys start with. Am also hoping when he starts solids he will sleep through the night. His longest stretch upto date has been 4 hours, and up every hour from then.