Motivation follows action — not the other way around
The common model is: feel motivated → take action. Research on behavioral activation therapy and the 'action-motivation loop' shows this is backwards. Action produces motivation. Starting a task (even for 2 minutes) generates momentum and dopaminergic feedback that makes continuing easier. Waiting to feel motivated before starting is the primary cause of chronic procrastination. The fix: lower the activation energy to starting, not the task itself.
Don't wait to feel like doing it. Start, and the feeling will follow.