Why can't I get into phpmyadmin?

Question

linux

The problem is this: I
installed lamp (later I tried to install phpmyadmin separately)
I can’t get into phpmyadmin
here is the directory I went through: localhost/phpmyadmin
here is what it gives: 404 Not Found (this is the title)
after which I decided to check if PMA is worth it at all, I went into the terminal,
this is what I typed into the terminal: apt policy phpmyadmin
here is what I got:
phpmyadmin:
Installed: 4:4.6.6-5
Candidate: 4:4.6.6-5 Version
table:
*** 4:4.6. 6-5 500
500 gb.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
500 gb.archive.ubuntu.com/ubuntu bionic/universe i386 Packages
100 /var/lib/dpkg/status
as you understand I have PMA installed, but how do I get into it?