Greasy hair? Please help?

Ok so ever since 6th grade I took a shower in the moring before school. This caused me to get up really early. But, while I was doing that my hair looked great up untill like lunch time, then it started to get really greasy. I began to take showers the night before becasue I just couldnt get up that early anymore. Now when I wake up, my hair is already greasy. Ive used pantene products since I can remember. I have short, very thin hair with bangs that swoop down across my eye. What am I doing wrong? I always shampoo and condition once a shower. And I shower everyday.