Post and Page Content Alignment

Your page has a lot of invalid HTML (all that red part is the mobile menu, which has <span> tags for colors nested in the wrong place). It also has obsolete HTML tags like <center>. You can’t use the typical customizing tools, which are based on CSS, when there is HTML that contradicts it.

This is what I see when I use my browser on your page to View Source:

@atmarstein It appears that your site theme is wrapping all your content in a <center> tag, which centers the content. You’ll need to contact support for your theme, or adjust the theme itself.

Oh my. This is just overwhelming.
My theme doesn’t have support.
I hope to fix this myself and I don’t know-how.
It looks like I would have to stripe down everything on the theme and correct it and I don’t know how to.

Go into the Appearance > Customizer and preview your site with a different theme.
If it fixes it, that means the theme is causing the problem. You can switch to any theme you want. If it doesn’t fix it, the <center> tags are in your content and you need to edit the content to remove them.

I guess out of luck it has been fixed. I installed another theme that is almost the same as the current one I have on. After doing so, all the contents aligned to the left.
Thank you all for the support.