Why do you go on holiday? The reasons vary from individual to individual of course. Many people go away in search of better weather. It is common in the United Kingdom to go away for a spot of winter sun, when the winter is cold and the hours of daylight can give rise to seasonal affective disorder.
But it is not just winter when people escape for better weather. They do so in the summer too. Some escape to the United Kingdom in the summer for a holiday. Now this might make you feel incredulous, but not so much so after you consider that a large majority of these visitors are from even warmer climates such as the middle East, where summer Celsius temperatures can reach the mid forties in the shade, so the United Kingdom climate is cooler in comparison. You might even see some people wear tracksuits because the surroundings feel cool to them!
When you are on holiday it is a good idea to disconnect from your daily life as much as you can. After all, your daily life is probably hectic, which is why you went to have a break in the first place. But going on a break means just that. Avoid the things you do in your daily life, otherwise it will seem like you were never away mentally even though your body was in a different space. And when you return to work you will feel twice as tired, and the holiday will have been counterproductive!
And if you cannot afford the time and expense to go on a holiday, maybe doing something out of the ordinary would be good. Perhaps take up a skill like cooking, art, or playing the piano. It may provide a welcome distraction just to break the monotony of life! More importantly, it allows you to establish a level of control over your life, and would give you some sense of well-being and happiness!