Hi First Time Mum.
The 2,4,6,8,10 thing works like this. You pick a good bed time for you and your bub. I chose 7:30, Ezrah's had dinner, a bath and time to play. He has his last bottle at 6:30 or 7. Then we sit quiet and cuddle or read. I then make sure we say goodnite to whoever is here (nana, uncle etc.) and we go to the bedroom and I put him in his cot. I turn his music box (which goes for two mins) and stroke his head and say good nite and leave the room.
If he cries, I let him go for 2 mins, I then go in and pat him saying "It's sleep time, it's alright". I keep soothing him for 2 mins. I then say good nite again and leave, this time for 4 mins. If he's crying at the end of 4 mins I go in and do the soothing again for 4 mins. Then I leave for 6, 8, 10. If he's still crying at the end of the 10 mins I go in, check his nappy, offer him a drink and give him a cuddle. Then we start again. Each 2,4,6,8,10 adds up to an hour.
The first time I did it it took 2.5 hours, the next was only 1.5 etc. I did it with his day and nite sleeps. I picked 2 day times when I knew he got tired and I've stuck to them. I give him about half an hour's leeway because nothing is set in stone. So in the morning he'll go down between 9:30 and 10:30. In the afternoon it is between 2:30 and 3:30.
It took about 3 days. Now he comes to me ready for a sleep and soesn't cry unless he needs to poo or is a little it thirsty or something is wrong. Then once I've fixed it, off he goes.
I found he 2,4,6 thing a little easier because I got to go into him. It didn't seem like he was screaming forever. He also learnt that I would come back and that I wasn't far away.
He's is a different baby now. He is so happy now and doesn't mind if I'm not in his line of vision 24/7 because he know's I'm there and will be back.
I have an article if you would like more info.
I'm not saying that everyone should do this my way. But this method has made life easier for me and Ezrah. Babie are each their own little people as much as we are and what works on one may not suit another. Good luck, whatever your way may be!