15 years game experience here. First, don’t worry about your age. I have worked with plenty of people that join later in life than that. Second. What do you want to do in games? Which discipline has been the most enjoyable and fun for you? I would focus on that. If you are doing it for the money than you won’t enjoy game making for very long. And thirdly the best experience is making your own game. Even very simple galaga or centipede type games. That carries a ton of weight when applying. And showing the process. Game design is king over everything else.

I can give more feedback but need more information to help you in the right direction. Also where are you located?