Hello Klush, I'm new here, but I wanted to add something to the replies that you have received. I am a big fan of the Glock pistols. I do not believe that they are perfect, even if Glock uses the phrase "Glock Perfection."
But they are a fine pistol, and they are usually quite reliable. Personally, I favor the 9mm Glocks. I have nearly every frame size, including the 17, 19, 26 and the 17L. One thing that I have noticed is that every frame size fits the hand differently. I think that if you go to a gunstore, you should hold every model and just see which size feels the best in your hand and also see which pistol points most naturally for you. I started with a 17 and later I discovered that the 19 pointed most naturally for me. The model 17L was also a very natural pointing pistol for me, I suppose that it was because of the longer and heavier slide and barrel. Everyone is unique and what fits my hand very well might be awful for the next guy. Good luck to you, and please let us know what you purchased and how you like it.
P.S. You might want to also look at other makes of pistols and see what you think. Personally, I like Glocks, 1911's, Browning Hi Powers and also the Walther pistols. My EDC is a Walther PPS in 9mm.