Why do not i have a sweetheart

You're not going to find a girl who's going to immediately love you. You're going to have to socialize and take risks, and approach women you're interested in. Whether you're asking for their number or if they want to go on a date. You're going to have to be alright with rejection too. Everybody wants to be loved and it's not unusual for people to find it harder to find a relationship.

Please don't be desperate, desperation is your enemy! When you are desperate you attract the worst sort of partners, trust me on this one.

Go to a bar

The only thing I can recommend is to publicize your hobbies. In other words, join groups or clubs that do what you like doing.

Try socializing more, that’s most likely where you’ll find someone unless you work or go to school. Also you don’t just find soneone that loves you. Love is a process that could take up to weeks or months to develop.