Where you want to use the timer, add a timer node, and do this:
Change the number to any number that you want to use.
So you must know how long the animations are.
Then, go into the timer, click the tab in the top right that says "Node" and select "timeout()".
Add that to your script, it'll say:
So there you write what you want to do when the timer ends.
If you want multiple different things, (not from the same timer) then add as many timers as you need. Do the steps mentioned above and you'll be fine!