Here "he" means any person in general. AT: "Those who ... are not worthy" or "If you ... you are not worthy" (See: [[rc://en/ta/man/translate/figs-gendernotations]])
"carry his cross and follow me." The cross represents suffering and death. Taking up the cross represents being willing to suffer and die. AT: "must obey me even to the point of suffering and dying" (See: [[rc://en/ta/man/translate/figs-metonymy]] and [[rc://en/ta/man/translate/figs-metaphor]])
Jesus uses a proverb to teach his disciples. This should be translated with as few words as possible. AT: "Those who find ... will lose ... those who lose ... will find" or "If you find ... you will lose ... if you lose ... you will find" (See: [[rc://en/ta/man/translate/writing-proverbs]])
This does not mean the person will die. It is a metaphor that means the person will not experience spiritual life with God. AT: "will not have true life" (See: [[rc://en/ta/man/translate/figs-metaphor]])
This does not mean to die. It is a metaphor that means a person considers obeying Jesus more important than his own life. AT: "who denies himself" (See: [[rc://en/ta/man/translate/figs-metaphor]])