ok mate.
nobody here can tell you how to work out, cause we dont know your personal limits. everyone is at a different starting point, and everyone has different determination, ability, size etc.

a good bet is to see how many pressups, situps, pullups you can do in a row and come back to us. how tall are you? how much do you weigh?
what do you want to get out of training? do you want to compete as a bxer, or are you doing this for fitness...