Rollator 4 wheel walker (St Pete - Central Oak Park)

Thought I just sprained ankle, but hurt so bad got it checked out yesterday & I broke my left leg/fibula (calf bone)
They gave me these ridiculous crutches that if I try to use will only make me lose balance & fall again, not going to work for me! I'm 63 with old bones & a weak knee on side where I have the fracture.
Need to see if anyone has one of the walkers with handles & wheels with a place to sit for when you're not walking can part with or let me borrow.
That will be better and safer for me to get around while Ortho figures out what needs to be done to get things straight...pun intended. Thanks in advance