slacking/lack of interest/never wanted to be an engineer
find something youre actually interested in. You clearly dont want to go into the medical field either, asking a bunch of strangers on the internet doesn't qualify as "interest."
you may have to end up accepting that the things you like to do are not going to be making you 6 figures a year right when you get out of school(which is a bullshyt mentality that a lot of college students buy into.). so dont worry, youre still young, fallow your dreams because if you don't you are going to regret it later when you are too old to do anything about it.
look at air force. Your GPA sucks and you have no idea what you want to do or how you are going to pay for it. Let someone else make that decision for you. 



no
