Trouble making grid responsive for mobile

Hi everybody,

I have a project due in the coming weeks, looking for help on making this website responsive for mobile - the grid size becomes way too wide so I’m unsure what would be the best approach to reformat it.


Here is my site Read-Only: https://preview.webflow.com/preview/ghrc?utm_medium=preview_link&utm_source=designer&utm_content=ghrc&preview=42a89cae6676db8a977933337d1c1134&mode=preview