At 3:34 I don't understand what ti do I'm doing the same thing but after applying the first key frame then i go a little bit forward then when i add 2 key frame the text didn't show
Go on effect and search edge glow and click on the edge glow effect and select overlay select the text clip . This is one way to do it . Another way is when you are editing the text clips in text option there is glow option you can do it there also
