How can I do better?

The other day, I made a comment regarding our political climate that a number of people reacted to with anger. It is ironic because it is the very thing i was commenting on, that I wanted to avoid causing more emotional distress in that segment of the populace in my country which is right now very upset. I made my comment without taking into consideration that the very environment on tildes was no different than the environment I was commenting on.

It is something that has caught me off-guard in the past on this site as well, where I said something that I thought of as innocuous, which some people reacted to with extreme emotions. When I was told to police myself more, I felt indignant and infuriated. I thought I was already trying to walk on eggshells enough!

I don't think anything I've said or done on Tildes is objectively offensive or inappropriate - and I recognize that sometimes people see things from a completely different reality than I experience. I want to make a solid effort to get along with people here, and that appears to mean that I need to learn how to communicate in a way that doesn't provoke discord.

So how do I do it? What can I do to make sure that I'm not pissing people off here just by conversing and expressing my thoughts or feelings? What specific strategies can I employ to filter my self so that it is safe? Cfabbro and Deimos both have told me that I'm doing it wrong, but i want to know how to do it right. Please teach me.