Good girl for going to mother's group, it really helps to just get out and talk to other mums. I'm so glad you resettled him! I used to do what Snacks suggested about resettling with DS2. He would do 40 minute sleep cycles, so I would go in to him a few minutes before 40 minutes and watch him. As soon as he stirred (he would sigh and move his head) I would pat him on his tummy to help him through to the next sleep cycle. It didn't work with every nap, but it usually worked once a day. My persistance paid off when one day he finally worked out how to go into the next sleep cycle by himself. So keep it up and it will pay off!

That's awesome too that your DH took some time off. I hope things start looking up for you soon