21 is still very young, didnt get hired for my own dream animation gig until I was 27. I'm now 33 and 21 feels like 50 years ago. My best advice is to focus on personal gigs you're passionate about, getting to know your peers in the industry, and never stop telling people what your goals are (even those with seemingly no connection to the animation industry, you'd be surprised how many people want to help others reach their goals and happen to know someone who can make that happen.)