Pi-hole is pretty robust and not super hard to set up. You can run pi-hole on relatively cheap hardware, such as a Raspberry Pi 3B. I’m a big fan of Libre Computing’s “le-potato” board for running pi-hole; it’s a cheap raspberry pi clone. You’ll need some basic Linux skills but if you can follow step by step directions you’ll be fine. If you use a raspberry pi or similar hardware you’ll also need a micro SD card reader during the set up process.