Mobile Issues (overlapping text and forcing all content into a single column)

My site has major issues when viewed on a mobile. Is there any way to turn off mobile viewing so that the desktop site is always shown until I can figure out how to fine-tune the issues?

My website: https://www.maxleveladventures.com/

The issues are:

– Overlapping header 1 text (really any large font; I don’t know whey it doesn’t return to the next line)

– Columns are pushed down below each other instead of remaining side-by-side. The worst example is on https://www.maxleveladventures.com/amazing-places-activities/

It also cuts off most of the background image and forces everything into a narrow column.

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The collapsed menu is really the only nice thing about the mobile site. Everything else would look better if I could make the mobile site look like the desktop site. Is there any way to increase the width so that it doesn’t scrunch everything into a single column?

Thank you so much. I’m an idiot when it comes to this stuff. I spent hours searching for an answer, but couldn’t figure it out.