You have good stats for the starter, really.
you need all the dex you have now to hit the better monsters. If you want to improve you could start giving the points you get from now on to str and agi. str makes it harder, agi makes you faster. OR str and luck if you plan to play on the graveyard or jack0. luck means that you get less critical hits which is important when you are not archer.
btw you could get your short sword. I think it has +100
Yes normally you whould stack together and one pulls mobs. But sadly not many do that anymore

I used to love this way of levelling.
I don't think there are pure tanks in this game. The problem with tanks is, they cannot really level because their points (if pure tank) go all to vit and luck. So normally one with high vit will pull mobs, enter dangerous places first etc
have fun
