Love the tree!
Here's my advice:
Decide now that this is the very last diet you ever do.
That you will not stop dieting until you reach your target.
Any blips and you get straight back on the diet as if nothing had happened, because you are in this for the long term, remember.
Realise you will be tempted, bored, and your mind will come up with all sorts of excuses to come off the diet, but you are just gonna plod on with it, each day at a time, because you have no choice once you have decided this is the last diet you will ever do!
That has been my mindset for 22 weeks now!
Good luck.