More babies are soothed by a swaddle than are not, so worth keeping going. The swaddle recreates the tight, secure feeling of being in the womb.
If yoy think baby is too hot, just put in fewer clothes. Swaddle with a sheet, not a blanket. I found that a cot sheet cut in half along the short edge made two great swaddles.
One of my (four) children didn't take to a swaddle. But that was because he just went to sleep easily without it so didn't ned a swaddle. With my other children who were all swaddled, any screaming and upset while being swaddled was more about wanting/needing to be asleep than it being anything to with the swaddle itself.
The swaddle also helps to put baby down. Likewise a dummy makes it much easier for baby to settle independantly (ie on own, away from you).
Have you got a co sleeper cot? You can take one side off most normal cots and then wedge it up to your bed to make a sidecar cot.
Then at night time I would swaddle (or reswaddke if at a night wake), feed baby while swaddled, lift swaddled and fed baby to your shoulder to give a gentle wind cuddle. Then dummy at the ready, lower baby into sidecar cot, insert dummy and cuddle around baby, holding dummy if needed. Extract yourself when asleep.
For daytime naps I favour relentless bouncing in the bouncy chair, and dummy.
It sometimes does take a baby a while to accept the dummy. It's to do with needing to learn to bypass the tongue-thrust reflex. This is a reflex babies are born with but overcome by 6 months ish. Some find it easier to take a dummy than others. But definately worth lerserverring so baby can learn, if you want baby sleeping independantly.