IMO you are over thinking this, your game is not going to improve by leaps and bounds buy purchasing a cue. The big benefit of having your own cue is simply not having to adjust to a different cue every time you play. If you buy a solid cue with a good tip that is all you need to worry about. Later in your pool career after playing for many years you will have a better idea of how your cue will affect your game. The only thing I would suggest at this stage of your game is to stay away from extremes, really light, really heavy, Huge tip, snooker tip, that kind of thing. Table time has way more influence on your game than the cue at this point.