Good job!  And almost perfect by that third take.  You are doing very well, and I have no doubt that in even less than a week, you will have this song down very very well.   

I have never been good at tapping a foot to keep time while playing.  Too much like trying to walk and chew gum at the same time for me (and yes, I also can't dance worth a crap). LOL  So I always spent a good bit of time playing with metronomes, drum machines, click tracks or timing strobes over the years to get tempo and timing down better.  Tapping a foot and playing at the same time is a bit beyond my capabilities, though.  If I could, I'd also try to learn to play drums, but alas..

So far as the flashes, ghosts?  Angels maybe?  Look kind of like some of the "paranormal" videos.  LOL  But most likely (also likely with at least a good number of paranormal vids) it is your camera trying to cope with the strong backlighting from the window and lamp behind you.  The autofocus will keep trying to focus on you, but as you move a little bit and it has to change the focus, it is also trying to figure out how to make the lighting look good.  I just gets confused for an instant now and then.

So far as the song goes, as I have already said, you have it coming along quite nicely.  One thing I would warn about at this point is to not over-practice it. 

As the song would usually be done by a band with vocals, it is 5 or 6 passes, maybe a couple more if someone is taking an instrumental solo.  If that is about how many times through you'll need o play it for the recital, then I wouldn't do the whole song more than maybe 3 times a day between now and the performance.  Otherwise you run some risk of going stale on the piece and kinda hating it by the time you do the recital.  That would be a shame with a pretty piece of music like this.

If you don't already know all the lyrics, learning them and going through them in your head as you play can help a lot to keep the song from feeling too repetitive in practice. 

If your teacher hasn't already told you how many times through the basic melody you and the other students will be playing it at the recital, you should call and ask.  Sometimes they can expect people to figure that out from rehearsals, and may forget to mention it.  But at this point you have the basic melody down fairly well, so you want to be practising the piece at the length you will perform it at.  If you don't, you run the risk of feeling like you should be finished after one or two times through the melody, and if the group has to play the melody through 5 or 6 times, you can get more tired and confused than you would imagine in that length of time.  Also, doing the melody the number of times you'll be doing it in the performance lets you practice the transitions between verses down to get them nice.

This is also a good time to work on your breathing.  The easy way to do that without having to think much about it is to breath along with the words of the song as you would if you were singing them.  It can help with your timing, and also with keeping down panic.  To panic real good, you need to either breathe too fast or hold your breath.  It is harder to panic if your breathing stays steady.  That may sound silly, but try it sometime when you're worrying or having a bit of anxiety.  LOL

Anyway, that is what I personally would be doing with practice right now, if I were in the same situation.  Playing the piece at full length maybe 3 times a day and trying to get the breathing figured out.  When gig day is 5 or 6 days away, then I'd drop down to doing the song at full length only twice a day and identifying and practising any little trouble spots that still remain for a few minutes a day (a few minutes is 5 to 10 minutes in this case).

Other than that, remember to play other music and work on other pieces to keep from obsessing too much over this one.

But the song is coming along well.  You are getting a lot of feel into it, and there are only a few small spots that are still giving you trouble.  They will clear up over this next week.  It is going good!