It depends on your interest. Although tennis has developed rapidly in China, it is not very popular and can't compare with table tennis and badminton. However, the development of tennis is the general trend, which is certain. If it is purely for fitness, it should not be difficult to learn tennis. If you regard it as a profession, you should take a long-term view. First of all, find someone who can play ball (preferably a professional tennis coach) to teach you and exercise your physical fitness more, because tennis is a very exhausting sport. Then watch more games, carefully consider the movements and styles of those masters, and then practice hard to form your own style. You should develop in a balanced way and have your own specialties. Ask more tennis players and learn from them. Well, that's about it. I hope the landlord will adopt it.