1994 Ford Taurus brake lines

I put fluid in this car the day I got it along with gass. I had little to no brakeing power. In the 2 miles to get it home from the gass station I was out of brake fluid and had no brakes again. I checked under it to see if any of the lines were leaking. There was a line coming down to a t that 2 other lines came into from each side. When I touched one of the lines at the t it fell right off the t. I put it back on with ease and am thinking thats were my leak is.
my question is if I put 3 o-ring clamps on those 3 hoses do you think it would fix my problem for 1-3 weeks till I can afford the new lines. Or if it would be well enough to not have to change them at all. It looks like the old metal hose clips rusted off. I can still see indents in the hose were they used to be.