Write yourself a love letter. Yeah, you read that right.
Being your own Valentine means loving yourself! Write out a list of things you like about you. It might seem silly at first, but this sort of self-affirmation is exactly the type of thing that you should do while single and learning to live alone. The list might be filled with silly traits like "I make a mean bowl of spaghetti," or deeper ones such as respecting your own strength and independence — either way, it's empowering to spell out all of the things that make you worth loving.