Hey,
I like what you are saying here, but I don't think the structure is that good. First, you shouldn't start every line out with Fathers. You could start out the first line with that and then the next line could be "they...."
Then you could say, "Unselfish and loving and full of care" or something like that. That way, you wouldn't be repeating yourself and it would look tons better. Another thing, make it a bit more detailed about why fathers are so great, grab the reader's attention. Like, "They always make the right decisions" and then give an example or something. Just work on that, and I think this poem could go far. Bye!