It is correct to say "I hope everything is going well for you." It is a polite and caring expression to show concern for someone's well-being.

Here are some other ways to express a similar sentiment:

1. "I trust that things are going smoothly for you."
2. "I wish you all the best and hope things are going great."
3. "I hope life is treating you well."
4. "I send my best wishes for your continued success and happiness."
5. "May everything be going wonderfully for you."

These phrases convey a similar message of well-wishing and expressing hope for the person's positive experiences.