After Effects is a huge application to learn, but a fun trip. I would highly recommend reading the manual. It is not that I don’t want to help, au contraire, but there is quite a lot to know to get the benefits from this package.
You do have a mode on your timeline…it is just hidden 🙂 There are icons at the bottom left corner of the timeline….one of the three activates the modes view….
Before trying tutorials, I strongly suggest reading the manual and playing with the software. Learn keyframing and basics (spatial and temporal etc), once you feel confident with that, then move onto playing with the filters.
After Effects is a fun ride. I have been using it since version 4.1 (6 or 7 years) and I still learn new things every week.
Good luck
Mark