A standard term life policy does not build any cash value. You are generally paying for the actual cost of the insurance for a specific term. Check with your agent.
The only way you can use a term life insurance policy to finance your retirement is for you to die. Term life policies do not build cash value and only provide monies to your beneficiaries upon death, if the death occurs during the 'term.' Since you are 57, it is likely cost-prohibitive for you to purchase a cash life policy.
Yes I think it will be useful for retirement life. This money will keep your retired life peaceful and happy. Policy you selected will be useful for your future life.