Website design

I have just purchased the Avada theme and need help customising it. I will have a maximum of 5/6 pages - Home Page, About Me, Blog, Contact me, my services, testimonials (which can also be in the footers or side bar) - I can add others myself.
I will need videos added or links to my youtube channel. I have some professional photos too.

I do have hosting and a domain. I also have a logo. If you can improve and my budget allows then I might consider a review of the logo. My main colours will be blue..and a clean background. Haven’t looked at any other colour scheme per se - open to suggestions.

In terms of customiszation - this is where I will need your expertise and guidance - I did build my first website..which got hacked after 18 months and I had to delete it..

I would like an optin on the first page on my slider picture on the home page and a sidebar with links to pages in the website which is about 20 posts..My last website was backed up and has some social media shares and comments..Would you be able to use that?
Now I want a more professional looking website. I was going to build it myself but noticed that Avada has numerous possibilities…too many for me to begin to decide.

I hope to hear from you soon.