Mindfulness meditation use to trigger serious panic attacks for me- I couldn't think and I couldn't breath. A little different than what you describe. I think you are fine and did not fail. Sometimes, certain types of meditation aren't appropriate for certain people at certain points in their lives. Perhaps that is the case for you. Some things work- some things don't. No one (at least not anyone who knows what they are talking about) will tell you that any one technique is the answer for everyone. Keep trying different things. You can find something that suits you.