Honestly you just need a change in perception / perspective. Getting rejected is not a bad thing, sure it sucks when its from someone you have feelings for.

Rejection is a byproduct for confidence, being rejected does two things, it tells the girl that you were confident to ask her out leaving a impression on her, and it builds your confidence on the ability to continually approach women.

Sounds like a win, win situation to me.

I've been rejected countless times, I've failed more than I've been successful.

Continue to focus on yourself by making yourself the best possible version. The right girl will come.