you know, a lot of people have very different opinions on this subject.
they say that if you let your kid watch tv as a baby it delays speech. im not proud of it but i let my kids watch too much tv when they were younger. my daughter could speak in full, unbroken, sentences by the time she was 18 months old and was correcting my grammar at 2 years of age! so i dont think that "study" is very accurate!
i also know of a child prodigy who at 2 years old was solving college math problems. when his father asked him how he knew this math, because they didnt ever sit and do math with him (he was only two years old), he told them he learned it from sesame street! his mind was so well programmed for the math that watching them count and such on sesame street that his little brain was so stimulated that he could just put it all together.
i believe that watching tv all day can be harmful for a childs physical development, but watching one or two shows can be very good for them.
now i only let my kids watch PBS in the morning, sesame street martha speaks and curious george. then the tv is off for the rest of the day (unless its movie night) and we go outside to play until lunch. sometimes i do flash cards with them, but their attention span is like 3 minutes. but letting them watch tv in the morning is good for all of us because i can get an hour of work in or sleep a little longer and that helps them so much because then im not too tired to play with them later in the day.
i have a 16 month old a 4 yr old and a 7 yr old, everyone i meet tells me how smart and well developed they are and i think that having a good medium of all the activities during the day really helps them developmentally.
limit electronics time, this includes even baby toys that are electronic, to a certain amount per day. read to them for that same amount and play with them physically for that same amount.
example: watch tv or play with electronic toy for 30 minutes, read for 30 minutes and play outside for 30 minutes.
p.s. my hubby was 18 when we got married, and i will tell you; they are babies until they hit 25!!! and my hubby just turned 26. up until last year he couldnt even make himself food without me. he would go out to eat when i was gone or just not eat for a long time!! it gets tiring when you have kids, and since we are pregnant with our 4th he has been a lot more helpful and grownup and i love it!
hang in there, even when things get harder they will always get better!