I'll tell you that for me, it's been almost two years on plan, and I still have to work hard to make the right choices every day - and I'll also tell you that I don't always make the right choices.
I
do think you are being hard on yourself. I'm sorry that you are disappointed that the process is still hard, but don't let that negative feeling overshadow your feeling of accomplishment at making a good choice. It's as if you are saying, well that right choice is no big deal, because it's the choice I should make automatically, if I wasn't so messed up.
That's bull! Don't let yourself talk to yourself that way.
How many years of eating habits are you trying to undo? I sometimes see people spout platitudes like "it takes a month to establish a new practice as a habit." I think that's bull too, and people who buy into that stuff are setting themselves up for failure. It takes much more than a month, or a year, to train yourself out of a lifetime's worth of eating habits. Add into it the uphill battle of mind against a body that craves sweets and fats for evo-bio reasons, and you can start to see why it's perfectly normal to still find it hard sometimes even after a year.
Don't be discouraged that it's still hard. Be proud that after a year you still have what it takes to put in the work and make the right choices even when your body doesn't want to cooperate.