I'm controlling and I need advice on how to stop it, I don't want to ruin my relationship?

This is a very good question... and it's really difficult to answer. The most difficult thing in bad habits is realizing them, and you have already passed that stage, which is great. You can now begin by watching your actions and telling yourself ';this is not who I want to be'; all the time... so before speaking to your loved ones, stop for a few seconds, think about what you are going to say, and judge whether it's something controlling or not., After you do that, you'll be able to evaluate your words and say the right thing. It's just a mater of time and caution. If you promise yourself that you can do it and keep an eye on yourself, you will! :)