How to online Date as a dude

I (m22) think about using a Dating App for the First time in my life. I have to admid I'm a Bit nervous to start bc it feels a Bit weird to "advertise" myself on the Internet Like that although I think there are definetly worse looking Guys than me in the world. Just in General how should I Go at it to Just get to know someone/ Go on a Date? Im Not the Most self concious Dude, thats why Im Not shure how online Dating will fit me though. ID be thankful for any Help Out there