Hey I have the same hair. I have naturally extremely oily skin and scalp all my life, but when I was younger I was bleaching and dying my hair sooo much, now the ends are so dry and damaged.
So first thing you mentioned, you wash your hair everyday...thats a big no no...Same with the skin, over washing anything will stimulate the glands and cause OVER production of oil, because you're drying it out....So by washing everyday, you might be causing extra oil-build up...(and believe me, I have the oilest hair and skin imaginable) on your scalp, as well as further damaging the ends, and prolonging the time it takes for your hair to repair itself...you need to wait at least 1 day inbetween washings to allow the oils to moisturize the ends and keep the hair healthy...You have to get into the habit of waiting a day or two inbetween washings...its hard at first for us girls with oily scalp we are tempted to just wash everyday, but the results in the end, will be time-saving and hair -saving..
Another thing that I found helped the oil...was proper styling and not using too much product before styling....Proper blow drying with the right tools (My Sedu blowdryer cost a fortune but makes my hair look stunning everyday), and not just towel drying hair is important...it kind of "locks" the hair style in for a few days, so it won't be all greasy after the first day...
You should also be using a gentle shampoo that isn't too harsh and too stripping but isn't too heavy...I just use a basic Dove shampoo and a Pureology conditioner that is free of sulfates...
..Also what's important is a healthy diet, make sure you are getting balanced meals and take a multi-vitamin....(I've been concentrating on trying to get healthy, eat healthy, taking care of your health will show in your physical appearance.) Well actually a lot of physical issues (such as oily scalp, acne, oily skin, flaking, etc etc) are caused due to some type of vitamin deficiency or hormonal imbalance....so its extremely important to eat right.. Here is a chart:
http://www.health-science-spirit.com/deficiency.html it shows if you have any physical problems (like brittle nails, dry hair, oily scalp, skin issues, which certain vitamins you are lacking)...
hope that wasn't too much!