In the first hand, raise more than 3xBB with AQ if you desire isolation. You have to feel out the raise required for isolation if that's what you intend to do. I don't care if it's 10xBB. If you WANT isolation, then find out how much it's going to take to get it. Of course, whether you want isolation for the price of 10xBB is another matter, but I'm just making the point. Think on your feet according to the table image.

In the KQ hand, don't raise at all from early position. It's king high, and you're in trouble postflop unless you flop real hard. Furthermore...

The table you're at is loose. What that means is your value gets transfered from preflop to postflop. The looser the table, the more you want to put money in postflop instead because implied odds are increased (postflop equity). What this means is what you lose in not protecting a premium hand enough preflop (which is sometimes fruitless when 5-6 people call a raise anyway), you gain is post flop equity when you hit because people are calling bets with all kinds of stuff. Get value when you make a hand. A lot of the isolation advice you read applies to tighter tables.

Position is much more important than you realize. Don't take up the minset of not wanting to limp something like AJo from early because you're stubborn. It's a losing proposition. The bigger the pot gets, the more you feel committed to it, and before you know it you're in a bad place. Don't start committing from early position unless you flop a hand you like. Preflop raises are committments.