Z.B I feel like you should have led out on the flop. It was a limp flop going 4 ways and with a flop with an ACE and 2 diamonds, This should hit some of the players hands. If you lead out you’re going to be called or raised with all flush draws or Ace X hands and since you have 2 pair you need to make players pay for their draws/ slash try to catch up. Half pot to 2/3 pot should be fine. In tournaments you need to build a stack early on. My question is why didn’t you raise preflop? I know A5 off isn’t the strongest hand but if it limp to you and you have an Ace you should throw in a raise. By doing this you give yourself a chance to pick up those chips without showdown. With it being limped around and you having an Ace it’s less likely someone has an Ace in their hand. Nobody should be limping really with and Ace I early position or a pocket pair. Say you put in a raise and do get one caller then you can start putting them on a range. If they 3 bet large then you can get away from the hand preflop if their a TAG. Hope this helps