I want to start degoogling help me???

I was thinking of degoogling my life for a bit and since google decided to ban the apk installing I thought it's the time to switch I already switched from Microsoft windows to linux and chrome to firefox but it's time to change for a phone There's the problem start I can't change the os in phone devices it needs to root that's where I am stuck since I read somewhere that rooting can brick my whole device and I have never rooted help me ???