Spinning my wheels on GBlitter

Overall, I'm making progress on writing GBlitter. That being said, it feels like I'm making progress slowly since I started by writing a lot of test code in the unit test file, and I've spent a significant amount of time this week just transferring that functionality into actual implementation and adding new unit tests for new functions. My main concern is whether this progress is fast enough to finish on schedule, but it's too early to tell for sure without knowing what obstacles and setbacks I will encounter later in the month. The stress of knowing that I don't have classmates around to help me with problems, I have less than a month left to finish most of the work, and that I will be moving back across the country shortly after graduation caused me to have trouble with insomnia all last week, which interfered with my ability to concentrate and make progress. I'm trying to work effectively in spite of that, with somewhat mixed results so far. I expect the core functionality to be in place by the end of the month, but getting every planned feature in might be difficult.