I've been following this lady's singing vids for a while.
One of my big issues is lack of appropriate breath control, which leads to the throat getting involved when I try to sing.
Skip forward to 55 sec in the video. As she says “you’re straining your throat, scrunching or reaching… your throat’s starting to get involved in micromanaging those notes.”
She has a fix for this. Don't worry, it's psychological. You won't have to practice for hours to take advantage of it.