If you need to change your password but can't access your wordpress website via the login page, then we can do this Quickly & Easily using phpMyAdmin inside CPanel.
Login to your CPanel Account:
Click on phpMyAdmin, listed under Databases:
Click on the WordPress Database for your site, shown on the left panel.
NOTE: if you installed your website using QuickInstall, then the database name will typically have the name wrdp#
Click on wp_users, shown on the left.
Under user_login, find the User whose password you want to reset, and click Edit shown to the left of the user.
Under the user_pass column to the far right, clear the current Value shown, and enter your chosen password here.
Under Function, hit the drop-down and choose MD5.
Scroll to the bottom of the page and click Go.