I'm so stubborn

So I had that huge session a few days ago and quit pretty early in the night. Well my buddy finished high in an MTT and won something like 700+ dollars, so that made me want to play to see if I could get that. Long story short, I dug myself a huge hole and lost almost all my profit for the day. The real story is that I'm so stubborn that I refused to quit until I got it back. Well 8 hours later, I got it all back, plus another 140 or so.

Here's a poker graph:



My final stats for that session were:
Profit: $141.5
VPIP: 19.48
PFR%: 13.21
AF: 2.26
Hands: 4919
ptBB/100: 2.88

I put in another quick session today. I ran pretty well. I got stacked once when I made a really bad play with JJ overpair vs a flopped set. I totally should've gotten away from that one. I also made a bad call on the river with AK on a KQ10xA board. The guy called me down the whole way with 10 J. I check/called a half-pot bet on the river. I should've just folded.

Anyways, here are the stats:
Profit: $143.25
VPIP: 17.73
PFR%: 11.55
AF: 2.26
Hands: 485
ptBB/100: 29.54


I've been having a pretty good last 3 days. Here are my stats:
Profit: $537.40
VPIP: 19.4
PFR%: 13.17
AF: 2.29
Hands: 6088
ptBB/100: 8.83

Sustainable?