Wondershare Filmora is the perfect step up from a simpler video editor like Windows Movie Maker. I use Filmora for work, for personal use, and for my YouTube channel. It has a ton of different editing tools, transitions, overlays, filters, music and more to allow you the functionality you need, without the steep learning curve.
It’s perfect for someone like me, who is learning as they go!
Check it out for yourself right here: https://filmora.wondershare.com/video-editor/