to add to Fredek's advise, a very simple luck charm which i've done for friends and works, take a piece of jewelry you wear every day. hold it and visualize yourself talking with guys. just you wearing the jewelry and someone walks up and talks with you. when you feel ready, pass the jewelry through cinnamon incense [for luck] and say a chant for either luck or love. [since you visualized love, say one for luck.]
spells are always more powerful when you cast for yourself. there are many spells on here, but try casting yourself. blessed be.