n8n, YouTube V3 api .google sheet Fix

I already have an n8n-powered AI video automation workflow that uploads to YouTube via the V3 API and pulls data from Google Sheets. I need someone to tighten up this flow so every piece works smoothly and is easy to maintain.

Here is what I want done:

• Trace and repair any broken or missing links inside the existing YouTube V3 upload routine, iits already Google Sheets connections,n8nconnection
• Refine the current VidIQ-style logic so keyword selection, tagging, and timing rules trigger .
• link UI/UX (design files are ready).

When you finish, hand me a Google Sheets guide that walks through setting configuration and prompt, screenshots ,video

[Mandatory]
tell me your portfolio related to this task. and Tell me price and timeline.