Hello! I have been doing the exact same thing as you are doing since the beginning of this year. I have been prescribed Adderall IR for a little over a year now. I'm prescribed 3 20mg per day and I used to be prescribed only 2. I wanted an increase because I felt as if it wasn't lasting as long and whenever it wore off I felt extremely fatigued. Now, I'm taking most of the time 4-7 pills per day because it doesn't seem to be working the way it used to anymore. I miss what it used to do for me, and I guess in a way it still does that, but it wears off in what I feel to be about an hour and thirty minutes. I hate that I'm doing this to myself and I can't believe that I'm letting adderall get best of me. Still, I can't stop. Otherwise I feel like crap or sleep all day. I usually end up finishing off my monthly prescription in about 2 weeks and then for the following two weeks I sleep most of the day. I'm so sick of doing this.