Pros (3):
Loving the intro with the happy and positive music!
I'm also a massive fan of channels that have a funny clip before their intro video (0:00 - 0:36) like you did!
You seem to be enjoying yourself which is awesome!
Cons[tructive Criticism] (1):
My only con is that, although it does seem like you are really enjoying the game, you can be a tiny bit quiet at times and I get that you're trying to focus on the game. Just as constructive criticism (and REALLY NOT TRYING TO SOUND RUDE AT ALL) try to liven up your voice just a little bit, but at the same time, don't over-exaggerate. Just have fun, but let others see your excitement and enjoyment in the game.
Overall:
This is a great first video and you should be really proud of it! I'm not personally a massive Fifa player or fan, but if I was, your channel would definitely be for me. I've subscribed because I do see amazing potential here (more than me anyway, I've yet to make my first video) and I think you could do great things!
Keep it up with the intro and keep doing what you love and enjoy most! So many people start and quit YouTube because they got bored of doing things for views rather than entertainment so just do what you have fun doing!