What is holding me back... That's a very good question.
Probably a mixture of things.
My boyfriend has no desire to eat healthy (or MORE healthy, I guess) so I don't eat the way I should.
I have asthma which makes exercise more difficult, but I am also very heavy chested which helps put my asthma in motion but also causes a lot of pain... So I just don't exercise. HOWEVER! I'm changing that this week. :)
Also, I hold myself back. If something is too hard, I lose motivation. If something is too easy, I get a little cocky and stop trying so hard. I guess the motivation is a big part of it.
Interesting question - my psychology holds me back - I dont drink alcohol, tea, coffee, I dont smoke, have never done drugs, I dont gamble - but I do enjoy my food... so I justify y binges with it's the only thing I do bad!!!