Achieving your dreams isn't hard, it all really boils down to you changing your language so that you have a "what," a strong "why," and a few "hows." Once you give it a few tries (you're not gonna get it right at first), you'll find a pattern of effectiveness that works specifically for you.
The thing about having someone to be accountable to is that it helps me stay somewhat distracted when the negative voices start creeping in. (Yeah, I get em too sometimes) Accountability helps drown out the voice that says I didn't do enough, or that I don't deserve to give myself the best.
Guaranteed that there's someone (or multiple someones) out there that have it just as "bad" or worse than you. No matter what is going on around you, just remember that ultimately, you have control over your own life.