بسم الله الرحمن الرحيم
(Fatwa: 265/234/M=2/1439)
You are worried about your job and income, it is the sign of your faith. Each believer should worry about it that no haram thing is mixed with his income. The dealing of insurance is based upon interest and gambling hence it is better to avoid working in insurance company and keep on searching any other lawful and halal income source. When you get one, then leave the present job, and keep on doing taubah and istighfar. Also keep on supplicating Allah for pure and halal income source.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband