brake leak

I stripped one of my flare nuts and I am attempting to replace it. I cut the line and put the new nut on. Now I am trying to double flare the line. I really don’t understand though. I have been practicing this on some 5/16 transmission cooler hardline that I cut off of my car. I could not get...

My brake fluid has been leaking for a while now but has just recently got much worse. It used to be a slow leak and I had to fill up on fluid every 2 months or so, but 2 days ago I filled the fluid up and it is already completely empty after about 2 hours of driving. I looked for the leak and I...