Hi, sorry for long post - i hope you have the time to read and help?
my LO is 14 weeks old. I am trying AGAIN to put him down awake but sleepy to begin the process of self settling. I was doing this at 11-12 weeks and after an ok start things went really badly and he became hysterical at bedtimes and the high pitched angry like screams would go on and on and on. It might as well have been CIO! At least I felt horrific for letting him cry even tho I was right next to him! I thought he might have been too young so stopped and he has been sleeping on me on the sofa since for naps and bedtime.
I tried again tonight, after 20 mins of fussing and crying and holding the dummy in he went to sleep! Less than half hour later he woke, so I went to soothe him with sssshhhing and patting, but he wouldn't be settled and after 5mins of reassurance 'he went for it' until after ten minutes of high pitched screaming (and i mean hysterical screaming) and banging and clawing on the mattress I gave up and held him. He looked awful 
We have a bedtime routine of bath massage bottle bed and he doesn't go longer than 2 hrs since his last nap before going to bed.
What am I doing wrong? Why is he sooo angry/upset after sleeping or being put down originally?
When he falls asleep on me I carry him up put him down in his co sleeping crib and settle him in the night just by popping his dummy in. He goes from. 7-5:30 without a feed and drops back off to sleep after feeds in the night!
Will be so grateful for any advice! I feel like I don't know what I'm doing, like I'm making loads of mistakes and at worst like I may be damaging him in someway allowing him to get so worked up.
Thanks