Moodle in English

Hi.
Please can you direct me to where I can find the config.php to find the dbcollation line so I can make the change?
Do I find this in Moodle or in the cpanel at phpMyAdmin?

When I access phpMyAdmin, which table to I go to?

Is this the correct place? 

Table: mdloj_user?

Do I then change the Collation of each of the pink marked items to utf8_unicaode_ci?

And then I will be able to add a new user from within Moodle?

I have no experience with database work and am anxious to make changes at the back end where I don't understand what I am doing.

Please can you direct me to how I should make the changes to be able to add a new user?

Thank you in advance!