How should i come out of depression?

ths month has been very tough for me to face ..firstly both my kids,, 3.5 years and the oth er 8mths old ver admitted with rhotavirus and 3 days back my husband had a heart atttack minor .. hes still in hospital..and im at home alone with kids.. with gods grace husband is doing good.. i try to remain calm at home,, but suddenly there so manu things hounding me... like was i responsible for all this to happen..full day at home alone with kids.. was he stressed because of me and kids.. should i settle down alone with my flyback at home .. may be he'll be better off alone.. the kids are often troubling him especially my elder one...but he loves them more than anyone....what shoud i do ,, i keep thinking as ive lost him... will he get an attack later on??????? id gonee to meet hie today,, i felt him different......whats going on in his mind right now? ohh god i know the above sounds very confusing but this my mental state right now.. i dont want to be like this ??? plsss help... my family wants me to return homw (india) with him,,, but i feel as if i shouldnt be going with him because he gets more stressed with kids and he needs a stress free life now and kids are just turning better after rhotavirus..,,,, i dont want things getting worsened there,,,,,, what do you think????