Every time I start dating someone I am truly interested in I start overthinking and convincing myself he doesn’t like me. Wtf?

The title says it all. I don’t feel that I am a insecure person but as soon as I start dating someone i become one! I like I start over thinking and become over critical of everything. Stupid things.. like how long is takes for them to text back etc. I fully know it is ridiculous. I just can’t seem to stop! It’s like I am hurting my own feelings by jumping to worst conclusion all the time. ?‍♀️