What would you do in this "lost-in-space" scenario?

I would use the oxygen in my suit to rig up a jet to push me back to the space station.

I’d be very happy that I took the time and effort to stick my head between my legs and kiss my ass goodbye before I left the airlock.

Puncture my space suit with a sharp point and let the air out in a whoosh.

Why prolong the inevitable?

Do what I can in those 7 hours and if nothing , then wait for a rescue while contemplating my life.

I would try any way I could think of to get back to the mother ship in those hours.

“Hey guys, I seem to be drifting away from the station. Can someone go get me? Thanks.”

And if I remember my time in Kerbal correctly, you are just making your orbit a bit more eccentric than that of the ISS, meaning you will not be drifting away forever.
In fact, it would probably take less than one revolution before you automatically drift back closer to the ISS, intersecting its orbit.

Even if one has, accidentally, kicked/pushed themselves off of the station (as in, they are now moving in a opposing direction from said station)?

If you are pushing yourself off forward or backwards relative to the orbital motion, I suppose your orbital period would change, and it would take a lot longer to re-rendezvous with the station.
But if you are just pushing yourself orthogonal to the orbital motion, you will move back to the station either once or twice per orbit, depending which direction you push yourself into.

If you pushed yourself forward from the station you would rise upwards and if you pushed yourself backwards you would sink lower. You would tend in the one case to leave Earth’s orbit and in the other to fall back to Earth.

The force you used to push yourself away from the station just might be detected by onboard accelerometers. This information could then be used to calculate the acceleration required to intercept your orbit.

@flutherother
You are not going to move into a solar orbit by pushing yourself off the ISS.

I’d take a few deep breaths of pure oxygen to get waxed and pop my own top. But then I’m no Sandra Bullock.

As Matt Damon said in The Martian, make small holes in the space suit gloves, and going full Iron Man.

I would probably prolong it as long as possible, cursing myself the entire time for ever joining the Space Program. And hoping against hope that some way, some how, my fellow astronauts would find a way to rescue me.