The way I work on the animations is by first having a general idea of where I want to go with it, but I keep it open to imagination to allow fun things to add. (This keeps me engaged since I hate following rules. Also, the sexier, the more engaged I am. For example, the car roof scene was completely unplanned, but I just let it happen after filling the neighborhood with some life)
I can stay focused by laying down end-to-end poses and then focusing on the center. I also work offset from the root bone to reduce slipping.
Let's take a walk cycle, I've seen people animate 1 part at a time. First step, mid, last step.
I skip the middle and adjust it later.
First step, last, adjust mid.
This provides more feeling of quick progress and only needs easy adjustments in the center because the pc handles half of it.
Growth requires sliding adjustments because it originates from the root bone I left behind. But because I work on posing parts from first, last, middle, I only have to adjust sliding once.
Always focus on speed and straightforwardness. I heavily use the advanced bone handler to rotate joints exactly how I want. Idk why anyone would try anything else that's less accurate. It feels like I'm grabbing the arms for stop-motion stuff and that feels engaging.
Go fast, replay and watch each joint each time through, but take your time. Nothing is more satisfying than finishing a part that doesn't look stiff due to moving each bone meaningfully.
I'm going to make a tutorial series for everything MMM to expand on what I do and think.
I never work on anything without streaming anymore, (except this tutorial series. So many retakes) I always update the Discord and my deviantart page when I start a stream on picarto.tv