Im sorry to hear what you're going through, have your ever tried Headspace ? I have some friends who've used it and have said that it was really good
For links sent to you in emails. Paste the url into Norton safeweb. Note the warning. Do not click links, this is a safe way to check a url before you enter the webpage. If you do not have adequate browser protection some websites can infect your phone just by entering the website. This is clearly a phishing link, the NHS does not use ".Com" sites.
https://safeweb.norton.com/report/show?url=https%3A%2F%2Fnhs-uk.form-pass.com
Where is your evidence that the vaccine is unable to prevent transmission? If this was the case we would have the same levels of virus circulating across the population, and population studies such as the ZOE Covid Study (which does asymptomatic testing) would be showing an incredible amount of positives.
There are many articles that suggest (by many qualified people) that both symptomatic and asymptomatic spread have seen a marked reduction following vaccination (see here for just one example, I'm sure you can find many more with a simple Google search).
Denying treatment or delaying treatment in favour of characteristics such as this is dangerous and sets a terrible precedent. All decisions should be made in favour of clinical priority and prognostic factors. I work in cancer care, using this same logic people with lung cancer who smoke would be delayed in favour of non-smokers which is quite frankly sickening. People are free to make choices, and they are free to make bad choices. As much as I am pro-vaccine it is ultimately the individual's decision as to whether or not they have it, as much as it may be a detriment to society unfortunately.
No worries, i think it would be a great job to have too. After you replied i had a look to see if there were any books about it and found this, it is not available but the introduction might give you some ideas.
edit: look also at some of the reviews for the 'suggested items' as well, there is some more info there about what things are like.