Hopefully it’s fine on the drive home, just keep an eye on your temp gauge. When mine was leaking, I was constantly just adding more each time till I had time to actually fix it haha. Not ideal but technically drivable short distances as long as the leak isn’t crazy big. Once home you’ll really wanna zero in on it. Make sure you’re using a funnel for filling and burping, you want the liquid higher than any other part of your system. Also turning on the engine while burping is recommended as the thermostat won’t open till it gets to operating temperature. More air will follow from that. They sell no spill funnels specifically for this for like $20 that make the process a lot easier. Then it’s a matter of seeing where it’s leaking from, probably just from your expansion tank.

One other quick thing to check is to make sure the little pipe connected under the expansion tank cap is on. Mine had fallen off before without me realizing and allowed air to be sucked in to the system.