11k hands not big enough sample to judge winrate. You're probably running somewhat above expectation at the moment.

You are a nit, which isn't the worst thing in the world at 25NL, but you definitely could start opening your game more as you get more comfortable postflop. The first way to start this is to start stealing and isolating limpers with wider ranges in LP. Your button/co raise of around 12% is incredibly tight. For comparison, mine is 28% (at FR).

I wouldn't suggest you go quite that loose just yet, but you should start limping behind a single limper a whole lot less in these late positions. With hands like QJs, I bet you're tempted to limp behind a single limper. Just raise it. Learn which board textures are good to c-bet and start doing more of it. Limping behind multiple limpers is better with hands like SCs, suited gappers, 22-66. your standard implied odds hands.