Greetings love, Indeed the game has changed quite a lot. I am coming up on my 7th year as well.
Upon changing my name from ~Minti3~ to now FlewToTheCity (Thank god they implemented this, I hated my old name), I had changed my Forum password with it. At times this comes confusing out of habit but make sure you are using the Password you signed up with the game in the actual game and not the password upon the forum (If you had changed it). Also, Sometimes the browser may give you the option to automatically save your passwords for the browser to fill out, This also has its tantrums sometimes. You physically have to enter your password into the 'Play Game' tab before logging in, Also remember to keep the tab open in the background, for some reason it does help to have it open directly behind the game itself. Also to my knowledge you can open the 'Play Game' tab on your phone while you play so you can see what is happening to the page at all times (Tho I do not recommend this option). But as the others have suggested, Try using a different browser. I currently use the browser called Opera, But Chrome and Firefox should work as well.