Build me a website

I have a website which I am unable to update or change due to the web developers using bootstrap of which I have zero knowledge. The site is www.babymodels.co.uk and I need it updated or rebuilt with improvements that were not available when it was done 5 years ago. I also need access to change things such as front page content, faqs etc, which I cannot do without emailing him a thousand times and still dont get a reply. Basically I want full control over the site. Is this possible.? Can someone suggest or help me fix or create a new version of my site.