Do you want to know the easiest way to adjust something, to take something that we should hate and learn to love it (or the other way around)?
A little bit at a time.
Walking into a room with different lighting teaches us this. If we are outside in the bright sunlight and come into a dark room at first it's black. We can't see anything. Give it a few minutes. After that we start to make out shapes, then things become clearer, then we start seeing things we missed altogether just a few seconds ago.
Our eyes adjust slowly. But by the time they are done, the clarity is amazing.
This is how sin creeps into our life. Very few people wake up one day and decide to be angry at the world, but they lose a little joy and treat people a little worse every day and soon they have changed without realizing it. Likewise, if you want to improve, say change your diet, cutting all sugar and only eating salad will shock your system. But if you cut a little sugar each day, eat a few more vegetables each day...
We have to be conscious of this. We need to realize when we are slipping a little bit and stop it right away, letting it go will just cause us to adjust and soon we slip again. Likewise, we need to pay attention to what we want to change and do a little at a time.
You'll be surprised how quickly this can change us.