Transfer Photos to Lightroom

I need help transferring over 5000 JPEG photos from my computer to Adobe Lightroom. I have some albums set up, but the organization is inconsistent.

Requirements:
- Move duplicates and unwanted photos
- Maintain existing album structure as much as possible

Ideal Skills:
- Proficient in Adobe Lightroom
- Experience with photo organization and management
- Attention to detail

Please provide a clear plan and timeline for completion.