Vertical colored lines on screen
Turned on my macbook pro mid 2012 and suddenly colored, vertical lines appeared on the left-hand side of the screen. I had used my laptop the day before and nothing was wrong. I didnt drop my laptop or anything, it was on my desk the entire time.
i should mention that after i updated to mojave, the screen would glitch (have weird pixelated squares) but they would disappear after a bit.
please help me!! Im a student i cant afford a new one!
MacBook Pro 13″, macOS 10.14