I feel scared to have sex again

So my ex was my first and only person I ever had sex with and It’s been a year now since I’ve been single and I keep thinking of trying to start new and find a boyfriend but the whole situation of having sex with someone new just makes me feel scared ?! I don’t know why it’s just think maybe cause I’m used to one person seeing me naked and be comfortable with that one person I’m super worried to even experience sex with someone new and it sets me back in getting into a new relationship, does any other girl feel like this?