Honestly as an ex burglary unit detective, don't go nuts. I've also been burgled twice (as a teen, living at my parents) so I do understand the worry.
Do not make your home a fortress where you're worried about living. You need to live in it!
A determined burglar just breaks a window - exactly what happened next door. They look for the easiest targets (mostly - exceptions will be the likes of the Premier League footballers where they are hitting them for Rolexes and diamond jewellery), so make yours unattractive to them.
Cameras, external lights that come on with motion (but remember it can also be a cat, hedgehog, trees shedding in autumn that can set them off - they aren't good for worriers!), good blinds or curtains which you open and close at appropriate times of day (shows its occupied), internal lights on timers for when you're out are all good and normal options.
The more open the view to your doors and windows, the less attractive they are because the chances of being seen are higher. That doesn't mean take down a gate, but it does mean that a good night vision camera plus a light that comes on is more of a concern than a dark garden.
The more you barricade your home, the worse you'll feel IMO. No panic rooms unless you're a high net worth target for kidnapping like a Kardashian.
And if you see that batshit article in The Times about Ring / video doorbells increasing the chances of a burglary, completely ignore it, the woman is a moron and it's been debunked by a LOT of people.
FWIW, I have a ring doorbell out the front, a motion sensitive light out the back, an internal camera to watch my dog howl when we go out 🙄 and a lamp which talks to Alexa so I can switch it on remotely it set it to a timer. That's it. The 30kg dog doesn't count, she'll lick them and wag her tail.
The front door is a generic UPVC one, French doors to the rear and a 6 foot garden fence and gate with a padlock on it.