Once upon a time you used to wait in line for the next perfectly crafted Harry Potter book, dressed in robes bearing your house crest (and maybe even wearing some HP-inspired earrings). You would read the book in one night, and fall asleep hugging it
When a “bird’s nest” of thread appears, the likely culprit is your upper thread tension. If loops appear on the underside of the fabric, the upper thread tension may be too loose. If knots appear on top of the fabric, the upper tension may be too tight.
"You've always had the power my dear, you just had to learn it for yourself." - Glinda, the good witch, The Wizard of Oz. Wow if we would learn that our power is from God and we already have it? How powerful we would be!