Go buy another logbook. Use one to make entries as you do the flying, i.e. land, refuel, put aircraft away, fill out logbook. Then you go home and transfer entries to your 'good' logbook. You are bound to make a mess the first time. You should probably have your good one with you at all times as it will presumably be the one with all your sign offs in but it can be kept in your bag/ car/pocket. Mine had tea spilled on it in its first week. Don't be afraid to write more than is required. If a flight turned out to be special, say so and why it was.
Mike W