i would go for a larger preflop raise on hand #1, at least 4 times the BB. you have a marginal hand out of position and really just want to take it down.
as you played it, i'm going broke given that villain is totally unknown and is likely to be awful as it is early in the tournament (though this fluctuates with the buy-in).

on hand #2, i like the raise to 300. yes, you will be pot committed, but you will actually get called by some worse hands that way. if your push gets called, you are likely way behind.