A mentor, coach, therapist, or partner can help as well.
You might want to check for underlying issues such as ADHD, though ultimately you've still simply got to establish goals, make a plan, and execute on it.
With regards to underlying issues, you can really go deep with this. I just took Rick Hansons positive neuroplacticity training and it gave me solid tools to observe my own thought patterns and where emotions were making me afraid of taking steps forward and being in alignment with my true self.
https://courses.rickhanson.net/courses/the-positive-neuropla...