Glad you solved it! Here's my 2c in case others have similar issues:

I'd examine why you're procrastinating on the other actions. E.g., Are you simply spread too thinly, or are they no longer important? You may need to re-adjust your life to accommodate all you're trying to do. Use the Someday/Maybe list more, renegotiate if possible, and say "no" a bit more?

Over-focused on one area or project *can* be seductive. But it causes other things to lie fallow, which leads to (possibly bigger) problems down the road. If this is the case, try to make solid progress on your big concern (say one important task a day), then switch (with confidence) to actions related to other parts of your life.

Finally, if the University work is much more on your mind than other work, it may be useful to ask why. It's bugging you for a reason - what is it? For me, it might be an unclear direction or lack of confidence.

Also mentioned: Health issues, and correct level of project/action granularity.