Back in the Saddle

I just wrapped up my first session in about a week and a half and came out nicely ahead. Most of my big winning hands were just people doing retarded things and me running really good. As always, my losing hands were much more interesting.

Hand #1
Cutoff is a 17/16 and small blind is a 32/8. I pretty much hate my life when the fish 3bets, since his range is basically QQ+ and AK. Just folding pre occurs to me and I'm still not convinced that isn't the best play. When the flop comes ragged and he leads, I'm not even sure if AK is still in his range. Folding again occurs to me but I dubiously include some worse pairs and AK in his range and talk myself into getting it in. Thoughts?

Hand #2
I strongly considered folding on the turn here, but I didn't because I was still including some draws in his range; unfortunately, there are so many ways for him to be ahead of me that folding might still be best. But then he instapotted the river, which to me could either mean that he rivered the nuts (88, Kc6c, 57) or he's bluffing. It occurred to me that some of his bluffs could actually be ahead of me if he has something like Ad3d that he thinks is no good after I call two streets and decides to turn it into a bluff. That pushed me a little toward folding, but I felt like there were so few ways for him to have the nuts and so many ways for him to be bluffing and his sizing made me level myself and I called. Unfortunately he showed up with a sick range-merging top two pair that he instapotted on the river with a paired 3-flush board. I struggle in these spots because I am still really bad at assigning accurate ranges to nonstandard things like the 1/3-pot donk.

Hand #3
I suspect it might have been best to raise on the flop and try to get it in against his draws and pairs. I flatted because I wanted to try to get more value out of him on later streets, but I think most of his pairs are shutting down after I flat and I don't know if I can avoid paying off his draws when they hit, as one did.

NL50 Progress
$405.80 / $500.00 after 24,555 hands

I haven't been back to the Horseshoe, but I got a coupon in the mail for a free $20 bet at a table game so I'm going to try head back some time soon and put it all on black.

Horseshoe Progress
-$646 / $2,000.00 after 54 hours