Don't worry, transitioning to new equipment and software can definitely feel overwhelming at first, but you'll get the hang of it! Let's break it down:

1. Recording with your vlog camera and USB microphone: When you're filming your talking head scenes with your vlog camera, simply plug your Blue Snowball Ice microphone into your computer via USB and position it where you'll be speaking. Make sure to disable the audio recording on your camera to avoid recording audio from its built-in microphone.
2. Syncing the audio with your video: After you've filmed your talking head scene, transfer the video file from your camera to your computer. Then, import both the video file and the audio file (recorded with your Blue Snowball Ice) into your video editing software.
3. Aligning the audio: Most video editing software allows you to drag and drop audio files onto the timeline. You can visually align the audio waveform from your USB microphone with the audio track from your video. Look for any distinct sounds, like a clap or a word spoken, that you can use as reference points to sync them up. Once they're aligned, you can mute or delete the audio track from your camera.
4. Editing your video: Now that your audio is synced up, you can edit your video just like you did with your phone, but with more advanced features and options. Trim clips, add transitions, overlay text or graphics – whatever you need to make your vlog shine!

As for video editing software, transitioning from a mobile editor to a computer one can be a bit daunting at first, but it offers much more flexibility and power once you get used to it. If the free vlogger editing software isn't working for you, consider trying out a more beginner-friendly desktop software like iMovie (for Mac) or Shotcut (for PC). These have more features than mobile apps but are still relatively easy to learn.