Well if you really want to be secure, just wire the house. There is a side benefit of greatly increased speed, simplicity, and reliability. If you can't run cable in a crawlspace, basement, or attic, you can just stuff it under the molding. It will take a lot more cable that way though.
When it comes to Wi-Fi the only thing you have to do is set up WPA2 with a long and nasty random password. This is what will stop nearly all hackers. If you want to stop extremely serious hackers you can change the password frequently too, although if you're really a target of that you should just go wired.
All of the other stuff is nonsense:
Hiding SSD does literally nothing but stop the most casual people looking for an open network with a default password. WPA2 is not an open network. It doesn't hurt, but it's a waste of time. No person who can defeat your WPA2 would have been defeating by hiding the SSD, period.
White listing MAC addresses does nearly nothing. Spoofing a white listed MAC address is trivial. Again, no person who can defeat your WPA2 would have been defeating by white listing MAC addresses, period.
The usual response is "why not do it anyway?" The reason why you don't do it anyway is because it causes all manner of hassles for legitimate users. Let's say you have guests... they cannot use Wi-Fi unless your learn their MAC address, write it down, add it to your router, etc. Same thing every time you get a new computer or smartphone, network-enabled blu-ray player, or whatever. When troubleshooting connection problems, you also have these extra steps to turn off to see if they are the problem.
So my counter-question is "why go through all this hassle and future work for something that's worthless?"
To use an analogy, let's say you had a gold reserve protected by the best safe in the world and guarded by the US army, for free. At that point why would you go to trouble and expense to add a dollar-store plastic toy padlock to the front? Anyone who could defeat the military and then the safe would not be defeated by the toy padlock. So it would be useless and just get in your way every time.
The next best thing, after WPA2 with a great password, is to check your router logs occasionally. This will catch unauthorized activity even on your own computer, such as from malware or creepy roommates.