When I did remote work I had a similar issue, and still have it with my own projects. The way I overcome the self-lag is to compartmentalize - I have an internal boss hat / worker hat. When I think about goals, timelines, progress etc. and set those goals I don't think in terms of "I want to / need to", but "My $boss would want /need..." and think of bosses that I respected and did good work for.
tl:dr; I get myself into the headspace that I'm working for someone else to overcome my own ability to undervalue my own projects.
tl:dr; I get myself into the headspace that I'm working for someone else to overcome my own ability to undervalue my own projects.