Ok first impression from these are that you are too loose/passive.

The difference between your pfr and vpip is pretty big indicating you're not being aggressive enough from the button and cutoff (in position) and probably too loose oop. Seems a leak you may have is over defending your blinds from your fold to steal stats. You're probably spewing chips by taking passvie lines with marginal hands oop from the blinds.

IMO you're att to steal is WAY too low for 6 max! This shuld be at least 25. You need to losen up in positon and stop calling so many raises pre flop or limping if that's what your doing.

You seem to go to showdown too much and this will cost you money over the long run. Your W$AS seems to show you are on a heater and I don't think this is sustainable over time given how loose you are.

Finally your aggression factor is on the passive side, thats reflected through the rest of the stats also.

So in summary my advice would be.

1. Raise a lot more pre flop in position to take the blinds
2. C bet a lot of flops when you do this.
3. Don't overdefend blinds or limp in position - try to make the vpip and pfr closer together.
4. Fold a lot more to 3 bets. Calling them light will cost you over the long run, especially if you are taking passive lines post flop.

I'm no expert, just my take on things sicne I also play 20NL 6 max. Also 15k isn't huge, some of your stas may not be 100% accurate yet.

Oh I forgot to say wlecome to FTR!