Yeah I'll help you out. Be careful when laser spamming. At 0:09 you were firing point blank, and you got hit. Remember, Fox's lasers make the enemy come to you. So when he is close to you there is no need to keep firing. You rely on your Side B recovery a lot! You became predicable and it cost you your first stock. Oh and for the record, up throw to uair doesn't work very well on Ganon.
When you are down a stock you don't really want to rush in and blindly attack. Especially when your opponent is a tank like Ganon, and he is only at 40%. It would be wise for you to laser spam and rack up a little more damage.
You really have to slow down. Around 00:54 you hit Ganon, you wavedashed back and Ganon tech rolled towards you. You had the perfect up smash opportunity. But instead you went in for a dash grab, which missed. I'm going to assume that random Fire Fox onstage was an accident. Regardless, you got punished for it. When going for waveshines make sure your wavedashes are at full length. Your wavedashes were too short, so try and readjust your angles.
Let's talk about your edgeguarding attempt at 1:54. I can see how you missed the side B to the edge. But you still had the time to kill Ganon. If you actually took your time you could have landed that shine spike. You could have also used Fox's forward tilt (angle it, of course) to hit Falcon out of his Up B. Lastly, there is always down smash. At 2:21 you did a SHFFL nair, jab, then you ran away. There was no need to retreat. You simply give your opponent breathing room when you do that. You also seem to have a habit of teching in place. Try and switch it up a bit more. Remember all of your other options. The last thing I will suggest is more SHFFL dairs. You will land more waveshines that way.
Overall, I don't think you are that bad. You just have to slow down a bit more and think. You have minor habits (which I explained) that I'm sure you can correct since they were brought to your attention. Also try and improve your edgeguarding. All the best, keep practicing. XD