There are things in life you can change—your weight, your appearance, your mindset, etc.—but there is one thing you cannot change and that is other people. Try as we might, we cannot get people to love us. Even when we are the coolest best version of ourselves someone is going to say, "Not for me." But if we feel good about ourselves we can shrug it off and say, "It's just a date," and know that there will be others.
I've wasted a lot of time in my life. I've thought too much about what people will say or what they're gonna think. And sometimes it's over silly things like going to the grocery store or going to the post office. But there have been times when I really stopped myself from doing something special. All because I was scared someone might look at me and decide I wasn't good enough.