in my post not showing bullet points but showing numbers

There are Ordered list <ol> which will be styled as numbering and Unordered list <ul> as bulletpoints. When we create/edit a post we can choose to use <ol> or <ul> and we can always change it later.

So you can just get to the list part of that post and make this change, and that’s all there is to it.

I could see in the source code that the site is using Elementor text editor, so please refer to the instruction on how to use it, but it will be very straighforward just like any other editor.

Please note, to avoid losing/messing-up content on a live site, be sure to have the content of that post saved as a backup.