Sounds like you got everything wrong.
LME before the grains: Should be no problem, except that you probably removed more sugars than the grains contributed. Will not make much difference.
Adding all the hops during steeping: While you will have the IBUs required by the recipe, they will taste subdued. You will probably get more hop flavor than the original (I like First Wort Hopping - which is what you have just done), and if there were any aroma hops in there (these are ones added in the last 5 minutes) you will not get any of their aroma. Don't worry about it.
You might produce something better than the original product.