If you can hear what’s going on in these patterns and replicate it in other musical situations, then you’ve built a crucial foundational tool for improvising.
Be willing to critique yourself and to put in the boring practice time fixing the areas where you’re falling short.
Learn how to improve your fretboard control and reduce instances of missed, buzzing or fumbled notes during solos.
Your guitar solos will always sound a little predictable to your own ear. But what if you’re doing something that’s causing your solos and lead work to sound bland?
Power chords, once your fingers are comfortable with the stretching, are mind-numbingly simple. That's not a bad thing and I wouldn't say that power chords are "cheap" or "too easy." That's dumb.