Female ejaculation(squirt) question?

Hi I did it the other night I was extremely turned on it was the first time I had sn so big. I've been trying to do it again but I just can't get it idk if it's because I'm not as turned on or if something is wrong I can hit but haven't squirt since. Is this because I wasn't as turned on or maybe im trying to hard or can I squirt but just not EVERY time .