Project over my head...

Have you already mapped out due dates and time you can reasonably devote to each project.

When I got my BS in Mechanical Engineering - sometimes I just had to let things go as it wasn't a realistic goal...

Example: Class had a class and lab component - generally lab is separate and must be passed, but this class was different. I had to much on my plate to complete the lab portion of the class - so I had to ace all tests. Test average A, Final exam A - Final Grade D...I don't think the professor was particularly fond of my strategy...but I passed the class...

Not sure this will help...