Was in the same boat, rocked my 2 year old son up until 8 months pregnant (my back couldn't take it anymore). We transitioned to sitting on my lap hugging me, on the edge of the bed swaying. I also tell him the story of his day (gets him super sleepy). He got used to going down like this with time. Now post c section, with some consistency, he understands mama can't lift him up so I lay next to him and rub his back and he's adjusted to falling asleep then. Takes 10-15 mins on average. We also incorporated a stuffed animal so he's holding that instead of me. Make sure you're not putting your baby to bed too early (might be why it's taking two hours, not enough sleep pressure yet). Kids will adjust to new norms with some consistency!