I will do as much as I can to stay well and reduce the risks, but I am going to do what I'm going to do and if I get sick I will be disapointed but just deal with it like I have in the past. My main hope is that if I do get sick it's short term and curable (food poisoining, crabs or the like), rather than treatable but not curable (AIDs, Hepatitus) I have been vacinated for a much as I can and take PREP and DoxyPEP when in Thailand  

After a while there's only so much we can do to avoid being sick, especially if one of the focus of your trips is having as much sex as possible. Good luck staying well on your next trip Steve but most of all I hope you have a lot of fun and made plenty of excellent memories even though that means we have to take the bad along with the good occasionally.

I try to avoid jiuces and ice as well, stick to drinks froma sealed bottle or can, I don't have breakfast at the hotels, most often a late start and pancakes at a local cafe. 

I am paranoid about water, brush my teeth with bottled water, rince the tooth brush with it as well. Perhaps I am just dlicate

This might be an unpopular suggestion but one of my rules for staying healthy while travelling is to avoid hotel buffet breakfasts. Fresh cooked eggs are the one exception I occasionally make but otherwise I just steer clear. I've been sick more from hotel breakfasts than eating local food as long as I use common sense of eating freshly cooked food at busy places that locals eat at too.  I don't really eat much farang food these days in Thailand and am sick much less frequently but that's because I am very selective with which local food I go for. I always make sure it's cooked fresh even then, never go for the pre-cooked kebabs or sausages etc.  On longer trips to Thailand I'm a bit less paranoid about where I can eat due to having adjusted and have no worries about eating at good khao gaeng places where the food is cooked in advance. However it has to be a good and busy place where the food doesn't last long. I certainly wouldn't do that at a random place. One other thing: despite being a seafood lover I often have to avoid seafood as I'm not sure it's fresh or handled well. I only eat seafood in places that are busy, know what they're doing and you know that they will not be keeping seafood overnight etc. That comes from painful experience of some of the worst types of food poisoning. As Taas said water is the key thing to watch out for. On shorter trips to Thailand (before I've adjusted and probably got sick in the process) I'm even very cautious about accidentally drinking water from showers and baths even though both are awkward if shared with a LB though.