Ideally you’d be able to block off an hour or so every morning to get some writing done, but who in the real world has that kind of time?
Ask yourself why you started working on the project in the first place.
A big part of keeping writing alive for yourself involves pushing back on some of the “lessons” you may have learned from various sources.
It's okay to put a project aside and work on something else.
Stick with a project because you love the project.
The worst reason I can think of to stick with a project is money.
Know when to quit a project—or at least when to put it on hold.