Where and when can I actually speak my mind then?

So let me get this straight: I can't tell anyone in the real world how I feel about anything because then I'm being negative or argumentative, or whatever other excuse someone wants to give for not wanting to deal with reality, and I can't post what I really feel on social media outlets because well some of my so called "friends" might have a different opinion than I have but because they have the maturity of a 12 year old they only know how to "unfriend" someone when they disagree on a topic, they can't actually articulate their opinion like a normal adult and have a discussion about something, or better yet they resort to personal attacks. I can't tell my in laws what I really think about them because then that starts World War III within the family. Even though what I have to say is the truth, and sometimes the truth hurts, and what they are doing is affecting me and my life and my fucking bank account. But no I can't speak my mind. I can't tell my boss that I think it is really fucking shitty that we have 3 slacker fucking employees in our department who come in whenever they want (usually 10am or so), take 2 hour lunches and then leave at 4:15pm to go to "core and more" class at the campus gym. I can't tell my boss that someone isn't actually ever doing work, but rather surfing the Internet, skyping their significant other or playing solitaire. Nope, can't tell anyone that is going on. I can't tell people that my dog is half pitbull, nope I have to lie about that and keep it hidden because people are so fucking stupid that they don't understand that a certain breed of dog is not vicious- except for chihuahuas, cocker spaniels and dalmatians which are more vicious and bite more people, children in particular than any pitbull ever has. I can't tell my neighbors that I think they are racist dickheads, or at the very least I can't even tell them that it isn't nice to hate the Cuban family up the street just because they are jealous that they themselves couldn't afford at $320,000 house (here's a thought maybe if you kept your legs closed and didn't treat popping out babies as an Olympic sport, you might be able to afford some things- just sayin'.) I can't tell my fiance's friends that they are fucking morons and they really shouldn't be judging people considering they are 36 years old, have never had a girlfriend and still live at home with their father (and they look and act like a creepy pedophile)

So I want a fucking answer- when and where can I actually speak my mind on things? Everyone is so worried about the 1st fucking amendment, but when anyone has something to say they get beat down for having an opinion or making an observation. I suppose you can say I'm speaking my mind right here, right now; but to me this doesn't count because I know for a fact that no one reads this blog. And I also know that the people who need to hear what I have to say would never hear it anyway.