It is almost like changing a tire the first I put on a diaper, picturing the tapes as they are the lug nuts. As others have stated, hook and loop fasteners are better to practice to get the right fit.
With sticky tapes, there is a big trick in getting the initial placement just right when laying down to do it as my preferred approach. I bring the front of the diaper up between my legs and picture a line of symmetry from my belly button, then start with the bottom tapes putting it on gently and doing the same for the top. Then, when I’m confident, I roll my thumbs over the tapes to fully secure them.