Hello @walter!
You’re got some great advice and resources from @Rowan and @kira-marie! 
There are no such thing as ‘stupid questions’ from someone pursuing honest knowledge- you’ve come to the right place with a great question! 
A circle is usually drawn during spell and ritual work. It sounds to me like you are searching for ways to keep protective energies nearby (while keeping bad forces away!) all the time- not just during spellwork! I’ve collected some resources here that will hopefully offer some further guidance for you:
- Using Crystals With Protective Properties
- Making Witch Bottles for Protection
- House and Room Protection Talismans
- Putting Salt in the Corners of Your House
There is another discussion about haunted activity in @christina4’s house, and people have offered many helpful solutions and ways to cleanse/protect a living space!
If you are searching for a deity to work with, there is some guidance on how to connect with a deity in last week’s challenge Divine Magick.
Hopefully you can find some easy and powerful ways to protect yourself and your home even when you are not using a circle! Best of luck, and let us know how it goes- sending good thoughts your way 
Blessed Be! 