Finding the loops after taking out a row

hi! never used this before…
i am a beginner knitter. i am having difficulty finding the loops when i have taken out a row. i have used the troobleshooting video on the website, but still having difficulty. i have really nice stitching, it’s just when i make a mistake i am having trouble fixing it. very frustrating, since i spend hours (literally) trying to figure this out. help!

Not sure exactly what you mean. Are you pulling out the needle completely? Or are you removing the row stitch by stitch? Did you droop a stitch?