Comprehensive Cybersecurity Audit Needed

I'm seeking an expert to conduct a full system audit of my devices due to persistent and advanced hacking issues.

Background:
- My life has been compromised for about 2 years.
- Initially, it started with odd issues on my phone and expanded to unauthorized access to all my devices.
- I hear strangers talking in my house through my devices.

Affected Devices:
- Mobile phones
- Computers
- Smart home devices

Previous Measures Taken:
- Changed all passwords
- Installed antivirus software
- Contacted tech support multiple times

Ideal Skills and Experience:
- Proven expertise in cybersecurity
- Experience with comprehensive system audits
- Knowledge of securing mobile, computer, and smart home device networks
- Ability to identify and eliminate sophisticated hacking threats

Please provide a detailed plan and timeline with your bids.