You were lucky, but as all of the people relying on luck, it will eventually end at some point.
A quick look at your website is clearly telling there are many issues, all affecting ranking. For example:
1. Speed - it is below standard or anything acceptable
2. Domain authority - trust flow is only 2! There is no way to keep up with the competition with such a bad authority, especially for a keyword having 22000 searches per month in USA only.
3. Onsite SEO is bad. Keyword stuffing noticeable from far in meta description and title. Actually, there is keyword stuffing with h2 tags and multiple alt fields using the same keyword.
Also, content is thin and not offering any value to visitors (from the perspective of google). Almost no text compared to other sites having over 2K words articles.
4. Citation flow is high and disproportional to TF. This means the quality of obtained links sucks and that site is involved in artificial linking schemes (low-quality link buying). I've randomly checked some of the links to your site and it is clear they are problematic. Some of them linking to your site:
The Globe - The world's most visited web pages
The Globe - The world's most visited web pages
The Globe - The world's most visited web pages
https://websitedetection.com/web-site-list-10865
To avoid further spreading of defeatism, one good info.
You have an EMD domain, perfect for obtaining long-tail keywords containing bareback.
It seems site management made a classic mistake, relying on one "big" keyword instead on multiple related ones.