Is there a reason that I always have to Authenticate my account to log in?

Hi! In your account settings, you probably have the account security settings set to Authenticate/
Safeguard Login Attempts Against every login.
This can be changed by going to your settings page:
https://www.sylestia.com/account/settings/

Scroll to the bottom and in the box that says "Account Security Settings", click the drop-down menu next to the text "Safeguard Login Attempts Against".
Then choose what setting you'd like best for your account(This will determine how often you have to authenticate your account when logging in).
The options are:
- Nothing (Not recommended)
- Unknown IP Addresses
- Unknown Devices/Browser
- Every Login Attempt

After choosing the option that works best for you, click the green button "Save Changes".

I hope this helps. ^^