Web design and hosting for a gardener

This is my current website:
https://sites.google.com/view/greenhorngardenservice/home?authuser=2

Features that would be advantageous:
- all in one, web hosting, professional domain and email.
- integration with social media to show testimonials, reviews, and content uploaded as a stream.
- security against hackers.
- SEO optimised
- Visually striking and UX / UI compliant
- an enquiry form and CRM feature, which allows me to get back to users and manage my client databases.
- uptime of 99.9%+
- designed to funnel leads into enquiries
- ongoing support

Above all, I want my site to be simple, cost-effective and lend an air of credibility to my business.

What do you think it is lacking and how would you improve it?