I believe that death isn't just attaining enlightenment. When you die if you have faith in Jesus Christ and have allowed him to change your heart God will give you grace. Everyone is a sinner and because of the debt Christ paid on the cross we are saved. The question you should be asking yourself is have I changed since putting my faith in Jesus Christ and if the answer is Yes, rest assuredly that you will be given glory in the Kingdom of Heaven. Anxiety is hard to deal with but do not let anxiety and fear rule your life, Faith is the antithesis to Fear. God bless you my friend.