Criminal defense involves a lot of difficult things that you might need to deal with, but the truth of the situation is that there is one thing that all lawyers working in this field have to suffer from which no one really ever ends up preparing you for. The nature of your job means that you are going to be responsible for defending people that others might not like, including the public at large. When the general public doesn’t like the person that you are defending, they are going to be sure to let you know in any way they can.
Some of the correspondence you might get would be cordial and polite, but there is a pretty good chance that you would get a fair bit of hate mail as well. Most criminal attorneys practicing in Tampa receive something like this at a certain point when the person they are representing is truly reviled by society. The thing that you should keep reminding yourself here is that it is your duty to represent your client and make sure that they are protected from the legal system.
The hate mail is an unfortunate and unavoidable part of it, and you can make it a bit easier for yourself to deal with by remembering that this is just your job and does not reflect anything at all about your actual character. The things that you do during your career are all going to be ethical so there is no reason for you to have any doubts at all about any of the professional choices that you might end up deciding to make based on your own opinions on various matters.