> Also, I have ADHD. This is probably relevant, but I haven't quite figured out how.

Are you medicated for this? I got diagnosed with AHDH last year. The doctor I'm seeing specializes in ADHD and OCD and they have found in their experience that there are kind of two forms of ADHD. One is the hyper active part giving struggles to focus. The other is a motivation side of it where it's difficult to even get started on tasks. For me it was certainly the latter and the techniques + the medication I have now have really helped me feel productive and motivated again (inside of work and in my free time).

Would really suggest seeking help with the ADHD.