It's the right stat.
As I thought, you open too much in SB. If they fold a lot either pre or on the flop you can open wide in SB but at the same time it means you should be able to open a lot more in BU!
Your 61% SB steal is going to be too high long term, while the 51% in BU is average but can go 10% more easily.
Next on the list is 3betting. Apart from the blinds where you resteal a bit wider, you 3bet a static range in all positions even at NL10. On NL25 people do what you did to beat NL10 and know this game. In order to beat them you need to be more dynamic here.
Here are 2 threads which should help with the 3betting bit:
AK and QQ preflop on lower stakes
What's more important while 3betting, history or stats?
The unlucky hands you talk about suck ofc but as you can see, your EV isn't great either and just from looking at stats I found a couple of obvious spots where you can improve.
You also don't play back enough in the BB vs SB I believe. When it's SB vs BB you should be on the attack as BB since you have position preflop and postflop. Apart from that, SB will usually open way to wide, just like you do. ♦ Being IP vs a weak range is your sign to attack and put pressure. This doesn't mean spazz out!
Final thing for preflop would be the 4bet stat. I think it's a tad to low but it goes hand in hand with your statci 3betting range so that should change if you get into the 3bet/4bet/5bet dynamic with some "regs".
What would mostly help you is having more experience in postflop as well. There's a good chance you have a hard time with adjusting to some regulars and when you also get unlucky the results really take a hit!
Become active in your learning, post hands, watch videos AND take notes (not just watch for entertainment value), do sweats with players a bit more experienced than you.
Good luck!