Honestly, that's how people
should
be using streaming and subscription services. Trying something out, getting your entertainment, and then bouncing when its not as entertaining anymore so you can try something new is a much better use of your monthly fee than trying to find a few things to force yourself to finish. You don't owe any of these shows your time, so don't feel bad if you drop them at a moment's notice. Plus you'll find new favorites much more quickly.
"History Is Much Like An Endless Waltz. The Three Beats Of War, Peace And Revolution Continue On Forever." - Gundam Wing: Endless Waltz