I've tried Davinci Resolve, too, and found it quite frustrating to use. Personally, I've been using Movavi, and it's been great for my needs. It's user-friendly and has helped me understand the basics of video editing. If you're looking for something quick, Filmora is also a good option. It's not as flexible as Davinci or Lightworks, but it's less of a learning curve and won't slow down your PC. Unfortunately, I don't think they have a free plan anymore, but it's still affordable. By the way, have you heard of
Vidpros? I recently discovered it, and it seems like a promising online video editing tool.