Installing windows 7 SUCKED

I have this dell computer from 2018 that SHOULD be perfectly capable of windows 7 and is running it fine right now. But the process of installing it was way harder than it should be. The first thing i did was install it as anyone would normally. i flashed a USB drive and tried to boot from it bit it just immediately crashed on start. because it turns out the program i used to make the bootable USB drive isn't compatible with windows 7 for some reason. So then i use DVD and it just immediately freezes. and i tried so many things but it turns out a had to enable like 50 settings in the bios for it to work. but once I finally got it installed it wasn't over. I had to get a USB driver so i can use USB beyond just a mouse and keyboard. I searched for like an hour to get the right one and i burned it to a DVD to install it and it didn't install correctly making the mouse and keyboard not work, even in safe mode, bricking the windows install. I finally managed to get drivers working after installing windows a second time and now I finally have windows 7 on my computer. yay