I am having trouble with password. Forgetting password,as I have many mail IDs like yahoo,gmail,hotmail,apple, I cloud etc.,thus confusing about password and restating through procedures. The altered password is not accepted I Safari

I am having trouble with password. Forgetting password,as I have many mail IDs like yahoo,gmail,hotmail,apple, I cloud etc.,thus confusing about password and restating through procedures. The altered password is not accepted I Safari. When I want to open my mail but window appears as incorrect password though the mail appears on the left. however whe I go to my mail separately opening my mail, without mail icon in my pad.