Is it ok to use my car,while the power steering fluid is leaking?
Definitely not, You don’t know just when the fluid will leak out to a level that causes your power steering pump to stop providing fluid pressure for your “assisted steering”, When that happens the steering will go/feel heavy and you will have to put a great deal of effort steering , especially around corners (and you might be cornering or driving into a corner when it fails), this is a dangerous condition to be in.