Wix Client Portal Development

I need a secure, self-contained client portal built directly on my Wix site (renewpath.com). Currently, I use a Google-based tool under a different domain, and I want to migrate everything to Wix.

Requirements:
- Client login system using email and password
- Secure, personalized access for each client to view their reports and data
- Ability for me to manually enter or update client info in the Wix backend
- Automatic display of updated info on client pages upon login

Ideal Skills & Experience:
- Proficiency in Wix development
- Experience with secure login systems
- Backend management expertise

I NEED AT LEAST 3 SAMPLES. DONT JUST BID.