Identify your strengths. If you choose to be the fastest guitarist on the planet, be prepared for the massive dedication that goal will require. You may find that incredible playing speed isn't necessary to reach your objective.
One of the hidden barriers to progress can be thinking we know more than we do. I remember thinking that I “knew” the pentatonic scale and feeling that there was something else that I needed to know if I wanted to play even simple solos and riffs. If I could go back in time and teach myself, I would share the information that I now show to my own students today.
This article explains that a solid process occurs over time through incremental change. Be patient, small daily improvements add up to huge improvements. These principles apply to all projects - from mastering a difficult guitar technique to making blueberry pancakes. Yes, I really said that.