Re: page size
Your web pages are far too wide for my screen.
You have basically made your website too wide. You should not make a site according to the size of YOUR screen as you are now seeing everyone has different sizes.
What you should have done is kept your site build under 100 wide (preferably 940-980) by setting this in the page properties and by also using the available guide borders within the builder.
I am afraid your only option now is to bring everything in (width) or completely remake again.
Don't aim for success if you want it; just do what you love and believe in, and it will come naturally.