Trouble Removing bottom bracket. Is it my Tool?
Assuming you've got the right direction you're turning and its still not budging, use some penetrating oil and/or  borrow a breaker bar/vise (and use it carefully). 

One of the things with your style of tool vs the park tool style of tool is that you can't get as much torque on. 

In the case of aluminium, its conceivable that theres some corrosion, but dissolving it or heating it might be tricky depending on other types of materials involved.