u/randomnessedits

Pretty much what the title said,
I chicken out on my first solo today, even though two different instructors told me I got it down and was ready to do my first solo, I still felt like I wasn't ready, I don't know what but I felt like I had a mental block or something. I just know I didn't felt ready at that moment once I gotten down and taxi back to the ramp, I had a huge regret and wanted to go back up and do it.
Anyone got tips or advice to get over this feeling? I think it's imposter syndrome just cause I only had 23hr flight time.
TYIA