Disclaimer: I am not a doctor or medical professional. Consult one before you make any decisions. What follows comes from my personal experiences and observations.
My initial advice is to do research using sites that are NOT motivated to scare you about the incidence of STD's. The site you reference is in the business of selling test services. Not saying they are not a good service - they are very well respected as a test service provider. But the page you reference is designed to sell tests, not give you an unbiased POV on STDs, STD's prevention/treatments, and stats on STD's among various demographic groups like adult industry workers, escorts, and "civilian" populations in various age/gender/geographical areas. The last time I checked official stats (which admittedly was over 4 years ago), the incidence of STD's in the adult industry was lower than among the general population in my major metro (ages 18-40). So it's entirely possible, perhaps even likely, that your risk of contracting an STD is LOWER with an active porn star.
Next, looking at the adult performer industry, the general practice is that performers must have clean test results within the last 2 weeks. Some studios/producers allow tests up to 30 days, some performers require tests that are less than 1 week old. If you are going to book with an escort - porn star or not - you should have a discussion about recent tests at the appropriate time, as well as requesting that each party share test results. Most labs that provide testing to the industry participate in the PASS system, which is an online database that enables workers to share test results via a QR code. I use one of these labs and it makes it easy to share. In addition, using the same lab as the porn star helps with the credibility of my results docs. Next: Consider that if you book with a porn star who is currently shooting scenes, she will have current tests as well and will be comfortable sharing.
My opinion on herpes is that this disease is essentially ubiquitous in the US. Some stats suggest that any random adult in the US is more likely to have some form of it than not. It is so prevalent, and so treatable that most labs, even those who do not cater to the industry, don't even bother to test for it. So again, your risk of contracting herpes from a "civilian" may actually be higher than from an active porn star or any SW provider.
I have been dating (in one form or another) porn stars for over 12 years, and I have never contracted an STD from them. I get tested every 30 days as noted above, and I get tested through my health care plan for herpes every 6 months. So, no I do not assume that I will eventually get herpes from a porn star. Quite the opposite.
Your last question is about prevention. IMO this should be your first and most important question, if not your only one.
As noted at the top of my reply, I consulted with my medical provider. They referred me to their Infectious Disease Specialist team. I was completely open and honest about my activity and plans and asked for guidance on preventative treatments. Obviously, their 1st recommendation was to use condoms. But if I was not going to use them there are medications that can significantly reduce the risk of infection. I will not name them here, as I am not qualified (or licensed!) to do so. But there is a medication that will reduce the risk of contracting or passing HIV to the point where it is not detectable in your system. In addition, there is a (new) medication that will greatly reduce the risk of contracting other viral STD's by as much as 65% if taken within 24 hours of sexual activity. With these prophylactic meds and frequent, regular testing I reduce the risk of infection and increase the chance of early detection and successful. That means that even I do get something, I can get it treated quickly and can refrain from sex while doing so.
Finally, the Uber-level question here is about risk in general. Everything has risk. Driving, eating, travelling, working, socializing, even just sitting at home. There is ALWAYS a risk of some adverse event happening. The only people who have reduced all risks to zero are those who have moved on to the afterlife. Living = risk. Risk Management is a process of first, reducing risk as much as possible while still engaging in the activity or practice, then mitigating the negative impact of an adverse outcome. If you must reduce the risk of getting an STD from BBFS to zero, don't have BBFS sex - ever. Everything above zero means managing the risk at an acceptable level for YOU.
Life is good
The Cat