QQ against BB cold calling on SD

There is no need to bet higher.

His calling range can be something like this:
QQ-66,AJs+,KQs, AQo+, KQo

The population read on micro limits says that villain's line - xc flop, xc turn, donk river - is mostly for value.
I would not call this river.

I haven't played for few years so I'm practicly beginner as you are, and for that reason I won't tell you anything about this hand (don't want to misslead you if I'm wrong in something), but I have to comment on your understanding of betting as I saw the same mistake in few of your hands. Thing is, I was thinking just like you, until one of coaches on this forum pointed out to me that when we bet bigger, it's not because we want them to fold their draws, it's because we want them to call with worse odds, to make bigger mistakes. That's where our profit comes from in the long run. If they fold their draws whenever they don't have correct odds, they are actually not making any mistakes, so no profit for us.
I'm sorry if I get it wrong, if you already understand this concept, but in few hands you wrote "Should I bet bigger to make them fold their draws?" and I remember I thought the same, so I had to point it out, mabe it help you as it helped me a lot.

I would fold OTR here

Originally posted by wehleef
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Because I think that he hit his Ace on the river, should I bet higher on the turn? So that he does not call his range on flop and turn?
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This is a common error of thought for new players. You should bet enough for him to not be able to draw profitably. Then you want him to call. Why? If he folds, he made the correct play. In poker you win only by making fewer mistakes than your opponent.

Thank you both for opening my eyes. You were right, I was afraid of him calling me, because I did not understand the concept of draws!

The last hands ran definitely better than all the previous ones!

You are welcome.

Call-call-donk is usually a very strong line. I would fold OTR.