FIRST TIME FILLING TAX

Situation:

 

I arrive Canada on November 2023 and last year i was trying to file for tax but it ended up saying error and now 2024 my friends told me to do the filing online which is here in this websit which i did.

 

I just finished creating accout here and filled the questions to set account for tax filing but what is the next procedure? How to setup a new cra account if i never filed taxes before? The cra website asks for a tax line amount for 15000 but it gives me error..

 

so did i do the right thing to file a tax online i mean i havent submit anything yet tho or should i upload the T4 so that the CRA would recognize or what.. im confused as first timer.. what is the first things and its procedure.. 

 

THANKS.