Don’t let one bad day/meal/session bring you down. We all have days where we are just not feeling it and the training session is below par or we eat something ‘unhealthy’ and reach for that choccy bar when feeling stressed, the key to it is to not let those negative emotions get in the way of all the positive work you are doing.
Trying to change your lifestyle into a healthy one can be hard so don’t worry about the odd slip up now and again as long as you get back on track and stay focussed.
I personally believe you should never be so restrictive in your diet choices that you are eliminating certain foods groups altogether (unless allergic etc) , being too restrictive can cause stress which in turn can inhibit fat loss.
That age old saying ‘everything in moderation’ although not ground breaking is pretty accurate!