We are a do-it-yourself website builder platform. Unfortunately, we are not a website design agency. My recommendation would be to hire a freelance website designer to make the changes you outlined in your message. For about $100-$300, you can pay a good designer to work on your site for you either one-time or on a long-term basis very inexpensively (especially because SitesGPT is so easy to use and requires no coding.)
Here are some platforms where you can find good freelancers at very reasonable prices:
You can post your project on any of those platforms and you will receive multiple offers from freelancers who would love to work with you to make your website perfect. I highly recommend you select someone with plenty of good reviews because all those platform have very good talent, but also some that are mediocre.
Hopefully that helps.