Preflop
A 3,5BB open size is extremely large for tournaments, especially when there is no ante. Maybe you can get away with this in freerolls, where people dont pay attention and also dont care, but I would not advice to do this in normal tournaments.
Flop
I like your decision to raise his donk bet with TPTK.
Turn
Easy call.
Results
So the opponent had a 12 out draw, and he hit it on the end. Cry me a river.
hello, yeah, I also think that you played this hand good. Don't worry, it is happen sometimes. Next time maybe you will win situation like this. I agree with fundiver that in normal tournament raise 3,5x is a little too big, maybe in freeroll it is good tactic, but not normal tournament. In normal tournament when opponents are deep stacks over some 60bbb, raise 3x will be good for me. If I had stack about 50bb I raise 2,5x. This time you had unlucky. GL