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が成功して

… succeeds and

→ が
phrase Common #4,848
… succeeds and A sentence fragment: が marks the subject, and して connects to what follows.
JA: 計画が成功して、みんな喜んだ。
EN: The plan succeeded, and everyone was happy.

小説が成功して彼女は金持ちになった。

Her novel became a success, and she became rich.