Here’s a 7-day challenge for you. Every day for the next seven days, write a short melody, not a solo, no chord changes, just a melody. Make it something that you can perhaps sing. Make it something that might even get stuck in your head so that you walk around all day humming your new melody.
Writing melodies will open up another part of your creativity, sharpen your ears, and make you more aware of the melodic aspects of music and makes you a better overall musician. Go have fun with it, and do it for 7 days!