I think I can develop some interests and hobbies for myself in the past few years when I am single.
I have a friend who is also single. After graduating from college, she stayed where the university was and found a job. Her working hours are very stable. Tuesday to Saturday are working days, working seven and a half hours a day, and then Sunday and Monday are rest time. After returning home from get off work, she also has a lot of time to herself.
So she still had quite a lot of free time, so she found something to do for herself, and then slowly developed some hobbies.
The first thing she learned was cooking. Now she can make toast, bake her favorite bread in the oven, make braised fish, make cola chicken wings and many other delicacies.
The second thing she learned was flower arrangement. She has now mastered many flower arranging skills, and she has made several bouquets in her home. In her words, she feels particularly accomplished when doing these things.
The third thing she learned was video editing. She worked as an art artist, and she was exposed to video editing to some extent, so she found that she was also very interested in video editing, so she taught herself some video editing knowledge.
So I think: You can take advantage of your single years to do more things you like and develop some interests and hobbies for yourself, which will also make you feel very fulfilled.