Am I a whore

My boyfriend of 4 years broke up with me and I lost all confidence in myself especially after my ex started dating a girl two weeks later who was the complete opposite of me with little respect for my self I had sex with two different guys in the span of a month and then started dating a completely different guy weeks later. I'm only 16 and I now realize how stupid I was and how I wasn't hurting anyone but myself however no matter how thick my skin is I'm constantly fearing people will find out what I did, and that I'm a whore.