second round of sleep training ?

oookay going to try and make this as quick as i can. did some cio at 6 months to get baby used to his crib! wonderful. before that he slept with me. since in his crib he sleeps o.k i mean ge wakes every few hours to nurse but i can generally put him back to sleep in 10 mins tops... well .... he got a bit congested so i let him sleep on me in my big comfy chair .... and then i noticed his top 2 teeth are coming in. so in the past couple of weeks more often than not hes wanting to sleep with me. i love it. i love him. but i need a little bit of me time. between my 9 yo and baby i get little to none ( or course having to give attention to my so as well) how do i get my baby to self soothe? even now i nursr him to sleep,.and put.him down hes normally o.k. but ive picked him up like 4 times in 30 minutes now. do i let.him.cio?i know he just wants the comfort.... sorry for all the typos