If you are 18 years old, I suggest you do some low-intensity fitness methods! For example, don't do things like "lifting barbells over 50 kilograms, pulling ligaments, pulling horses with leg strength over 60 kilograms", which will hinder your growth and development. So you can do some simple exercises. This can enhance your muscle ability and flexibility. In fact, in the exercise of fitness, you can feel a lot of happiness and gain a lot, so that you will have many remarkable achievements in the future fitness. Secondly, as long as you have a clear diet plan, don't eat too much high-calorie food as usual, which will affect the effect of your fitness. Try to eat some fruits and vegetables, as well as beef, which can enhance muscle capacity, so that fitness will be as effective as you think.
Also, for you at the age of 18, although fitness is a goal, you must stick to it. In this way, your efforts will be useless and will not be rewarded. For example, your abdominal muscles have eight blocks, your chest muscles are strong, and your biceps and triceps can look very stylish. You can see it when you put on your clothes. Looks very handsome. This can increase the goodwill of the opposite sex to you. Then for you who are 18 years old, you can improve your confidence. Then, facing the future life, I will work harder and struggle better!
Finally, I wish you 18 years old, have no regrets about fitness and become more and more interested in fitness. In the future, you will be smooth sailing on the road of life and society and reach the peak of your life!