A lot of resolutions are framed as negatives. For example, your goal might be to reach a certain weight, but the focus is then on the loss of weight, rather than the gain of health and fitness. Another resolution could be to stop being so late for things, but it might be more effective to think of it as starting to be on time more often. Source
Don’t set yourself up for failure, make positive resolutions.
Another helpful tip is to break long-term goals down into smaller ones. For example, don’t set a resolution to run a marathon if you’ve never run in your life, even though it can be done. Break it down into smaller chunks, think about running 5km first.
Let’s all have a happy and positive new year!