Switching from After Effects to Premiere

Premiere Pro is a non-linear video editing app. After Effects is not a video editing app, was never designed to edit videos, and is just about the worst possible tool you could use to edit a movie. AE is a visual effect and animation app designed to create effects and composite shots you cannot create in an NLE like Premiere Pro or animations and on occasion, short sequences that you can then cut into a finished movie in your NLE. Your AE comps should be one shot, or on occasion, when you cannot make a transition between shots any other way, two or three shots in a short sequence.  More than 90% of my comps are under seven seconds because most shots in a movie are under seven seconds. Occasionally I will create a comp that is as long as a sentence or a musical phrase. 

In AE, layers cannot have multiple cuts. In an NLE, you can have multiple layers and each layer can have multiple cuts. NLE's playback in real-time almost always without rendering, have decent audio tools, allow you to quickly insert transitions and audio crossfades, and even set up auto-ducking for background sound and music tracks. None of those tools exist in After Effects because it is not that kind of a tool.

Just like learning After Effects, you need to do some homework. The UI is completely different, the workflow is different, the end goal for a project is different. Both apps are complex, but the level of complexity in After Effects is far higher. You can get into a lot more trouble in AE than you can get in Premiere Pro. Spend some time with the User Guide and check the help files. And most importantly, use the right tool for the job. I've shared this image many times. I hope it helps.

Not sure what you need to know. Of course Premiere is different and different enough even to cause a bit of headscratching if you've never used any video editing software. That's kind of the point. AE is still first and foremost a motion graphics/ compositing ttool whereas Premiere is a "real" video editing app. Some things will just be different based on different paradigms and different priorities. You will naturally be able to do easy stuff, but the finer points will take just as much time of learning as learning AE.

Mylenium