Depends on the snake - Here in South Australia there are just a few that “can kill 10 men!!!” But for every one you see, there are 10 that ran away before you saw them. They have tiny little fangs, so a pair of jeans, (+ gaiters if youre paranoid), is enough. I’m being a bit flippant, but really, snakes are way less dangerous than bees, horses, lightning, cars, falling down cliffs, dying of thirst, etc etc, all of which I deal with regularly.
But overseas, I’ve heard of fangs 2 inches long, that’s a different matter, so I can’t advise.
You might find some sites for your country like:-
http://www.toxinology.com/fusebox.cfm?fuseaction=main.snakes.display&id=SN0499
-but not the hysterical youtubes or clickbait advice.
fireants
Yes, good, watching for fireants, looking down, is protective against snakes
There are many factors that go to ‘dangeousness’.
Here, ‘brown snakes are aggressive’ which kinda means they stand up and give you a fright and then you both run away, not having actual conflict. I reckon that’s plus.
OTOH mulga snakes are so docile that you tread on them, and understandably they react with (for us) serious consequances.
Some snakes inject lots of weak venom. Some inject just a little strong venom. Some have strong venom, but won’t bite. Some are very deadly, but only live where people don’t. Some like to live in the tool shed, in the second drawer down. etc etc
re: terrible fear, phobia etc. Yes snakes can do some damage, but so do cars, medicines, electrical appliances… I think deal with the actual risks sensibly, maybe get counselling for the phobia, maybe keep a snakebite kit and a phone…
And with respect, can I comment on tiwane’s advice. Australian snakes work differently from other country’s snakes, and the treatment is different. I suggest learn treatments for the snakes that will bite you, and relevant to treatment opportunities in your area, not for some overseas snake on the internet.