Too late to sleep train...???

Hey ladies... So basically, my daughter is 10 months on the 12th and from day one she was always a good sleeper, didn't need any methods applying or tactical sleeping, she literally had her milk and stayed down. however!!!!!!!!

When she got to 7 and a half months she started getting ill and had virus after virus, 2 ear infections and 2 weeks of antibiotics as well as a sickness and diarrhoea bug!!!!! With no more than a couple of days inbetween illness she lost half a kilo over 5 weeks! But on the positive note, shes been better for about 10-14 days now. HOWEVER being ill has messed her sleep pattern right up! she's awake 12 times a night, constantly wants to be stuck to me or on the breast and everytime I put her down she's back up!!!!!!!! Please someone help me before I collapse with sleep deprivation 😂😭. She has two 40 minute naps per day and is generally very active. I cant seem to find much on sleep training methods so I dont know where to start. is she too old for sleep training? Will it even work? Any advice is appreciated ♥