To persist in one's dream or to stick to one's dream is to continue to pursue or work towards achieving a goal or ambition, even in the face of challenges or setbacks. Some possible ways to express this idea in Engpsh include:

Keep chasing your dream
Never give up on your dream
Persevere in pursuing your dream
Stay true to your dream
Keep striving for your dream
Don't let anything stand in the way of your dream

For example, you might say: "I know it won't be easy, but I'm determined to stick to my dream of becoming a professional musician. I'll keep working hard and never give up, no matter what obstacles come my way."