Oh no, me too.
But here's what I keep telling myself - you have the option to stop or continue.
If 4 is good, great! If not, 3 is where it officially ends.
Thomas and Friends has been going on since 1984, but season 7 (2003) is where it officially ends for me.
SpongeBob has been on since 1999, but the first movie is where the series ends for me.
Fairly Odd Parents has been on since 2001. But as far as I'm concerned, Channel Chasers is the official ending to the show.
Need I go on?