Resolved A problem with an animation!

I have a character who has a set of animations, and one is of attacking. Using the animator, I made the transition happen when the weapon # is 1, and when " Do an attack" is true (It's a bool). I have tried a few things, but it isn't working. I need a few things. 1 I need to make the animation happen once and not be able to be interrupted, and 2, I need it to activate, then inactivate (without the animation stopping). If I need to make "Do an attack" something rather than bool, then tell me. I'm looking for an answer that's simple. If you need any information about my problem, feel free to ask in the comments. Sorry if this was confusing.