Questioning My Photo Work.

Lately i have been having second thoughts about my photo work, wondering if it is as up to par with other people's photos like Alvin Carillo's or my girlfirend Jenna's photos, or even some of my other friends like Allison and Zach. I feel like my composition is constantly off, and everyone else seems to be generally more happy with the turn out of their photos than I am. I feel that im either really bad at taking photos, too hard on myself, or that i just need to really step up my game and focus on composition and such. Its just htat i have been having some conflicting emotions with my work the last few days i have been skimming through it. Well, the only thing I can do now is try to make a change in my work, or to try and find insight from someone else, but im thinking I should probably go this one alone. This seems like an issue best solved by me, but at the same time, I feel that i need an outside opinion to guide me in a direction that sets a goal for me to strive for. I dont know, it has just been eating at me for a while now, wondering if my photos actually satnd out, or are worth looking at.