I got the least in shared tips

I don’t know why but I had a noticeable less amount of tips in the jar at the end of the night. I always have thought that I’m the worst one there and this just  confirms it. Someone working with me pointed it out. The same person that saw it had also told me that I’m good at front of house. There are 3 separate areas to work and take orders from. Out of all the three mine was the worst. Idk anymore.