Ok, my tip for a beginner would be to start off by trimming your neck line just a bit ~1cm) higher than the natural neck line with a trimmer. Then use your clippers with the lever fully closed to “push” that line up another 1/4 inch. If your clippers are gapped close enough that should take out the trimmer line. Then keep opening the lever in 1/4 increments until fully opened, pushing the line up ~1/4 inch at a time. Continue adding guards and doing the same until you get to the 1 guard with the lever fully open, where you’ll start to flick out using a scooping motion. Depending on how long the hair is that you’re blending into, you should just be able to go fully closed to fully open with the higher guards. I hope this makes sense. PM if you have questions.