Do you think they are "dying" during a 3 game series?  Or do you mean over a period of 45 or 50 games?

For the former, you just need to adjust.  Modern balls are like sponges that suck up oil from the front part of the lane.  When this happens, the ball actually uses up too much energy early (burns up) and has nothing left for down lane where you want it.  The normal adjustment is to move your feet left (assuming you're right handed) a few boards.  Usually you want to move your target the same direction and a similar amount.  This will allow the ball to find fresh oil so that it properly skids, hook, and rolls down lane.  For example, if you were standing on 17 and hitting 10 at the arrows, you might move your feet to 19 and target 11.  That's moving in "2 and 1".

If your balls seem to hook less over 50 or so games, you have several options.  If there is a heavy track (parallel series of scratches in the ball to the left of your thumb and finger holes (again assuming right handed)), the pro shop can resurface the ball.  The other thing they can do is remove the oil from the ball.  There are several home remedies you can do for that as well.  They all involve heat.  They are easy to do, but you have to pay attention to what you're doing.

Give us some more details about your problems and we'll see if we can help you out.

Definitely try a full resurface and give it a good bake in a revivor oven or use the hot water method.  If that doesn't work, then it's usually time to either part ways or use it on a much drier lane condition.

i have a black widow bite and a columbia 300 arch rival if anbody need some info on what balls im using. lately i have been doin good in my first game but fall in my next two games. i use the hot water method once in a while