sleep/nap training advice?

MamaBear🐻🌼 • 26, Mom of two-proud Navy Wife & SAHM
My two month old will only nap being rocked on me, and at night he will only sleep with me, I have no problem with co sleeping or rocking him to sleep, but I am a little ready for a break and my 4 year old and the house needs some attention. ...he's still so little but any advice for some gentle sleep training like if I just keep rocking and laying him down will he eventually nap?? lol 
I'm going to buy blackout curtains for his room move the rocker in there, and maybe a sound machine and just work with him everyday but I know it will be hard every time I lay him down anywhere, he wakes up! I've tried him on his tummy, swaddle everything it's not that simple I need real sleep training advice! I need a break at some point!