Go install not working with zsh

I feel like an idiot because I've installed this before on macOS and OSX but for some reason I can't see what I'm doing wrong. Please help!!! I've created a directory, ~/go, which will be my workspace. When I run go env from my home directory I get zsh: command not found: go and I know it's because of the following files. What is wrong in my configuration?

~/.bash_profile:

export PATH=$PATH:/usr/local/go/bin

~/.zshrc:

export PATH=$PATH:/usr/local/go/bin

If you installed on Mac OS not with home-brew but with the macOS package installer, your GOBIN be in /usr/local/go and GOPATH in $HOME/go, finally in ~/.zshrc:

  export GOPATH=$HOME/go
  export GOROOT=/usr/local/go
  export GOBIN=$GOPATH/bin
  export PATH=$PATH:$GOPATH
  export PATH=$PATH:$GOROOT/bin

Below config is working for me,

in ~/.zshrc

export GOPATH=$HOME/golang
export GOROOT=/usr/local/opt/go/libexec
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOPATH
export PATH=$PATH:$GOROOT/bin

You can see the configured details as below then

> go env

GOARCH="amd64"
GOBIN="/Users/my-name/golang/bin"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/my-name/golang"
GORACE=""
GOROOT="/usr/local/opt/go/libexec"
GOTOOLDIR="/usr/local/opt/go/libexec/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/6q/h6nchrdj49zgjfcp8wstj94r0000gn/T/go-build874871088=/tmp/go-build -gno-record-gcc-switches -fno-common"
CXX="clang++"
CGO_ENABLED="1"
PKG_CONFIG="pkg-config"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"

Installing go through brew didn't add the global ENV path in the shell profile. So, I had to manually add it like in the ~/.zshrc file like the following and that was it!

export PATH="$PATH:$(go env GOPATH)/bin"

Note: If you are using bash or other shell, the name of the profile file would be different!