I wouldn't be so hard on yourself. This is a very difficult challenge!

I see that Uncomfortable has already critiqued your Lesson 2 submission, which includes the Texture Analysis. He has some very good advice there (and in that reply in general). The two things that I noticed were scribbling and in the case of a few textures (most notably, th computer chip), it appears that you simply copied the thing instead of copying the lights and darks (the shadows). I feel that these all trace back to rushing, as Uncomfortable points out.

It appears that you are really frustrated with you lack of progress. I'm really sorry for that and I can definitely sympathize with you! This was an area that I felt pain in for a solid 6 years of my life. I didn't start art until I was halfway through high school, and had a mindset that only wanted results and ignored practice. Suddenly, my dream was to become a professional artist, yet I didn't want to draw or practice, I only wanted results. I eventually decided to go to college to art, thinking that it would fix me and make me into a professional. I spent 4 years in a graphic design program, and my drawings still sucked. My insecurity followed me and I still only wanted results without the process. The only difference was that now other people were pointing out my flaws with my art (which wasn't so good for my already poor emotional state). My art sucked through college, and now that I graduated and have my diploma, my art still sucks! And in these few months after graduation, I have finally recognized these flaws for what they are. I went through a painful process of demolishing my dream of being a great artist, because that was not an achievable goal. There are many talented artists out there that never become famous. I am now learning to be more diligent to this craft, more humble about my aspirations, and more forgiving to myself for not being the best, and life with drawing has been a lot more enjoyable for me.

I don't want you to have a miserable 6 years like I did. Please be patient with your work, but most of all, be patient with yourself. Being a good artist does not determine your self-worth. You are already valuable.

I highly recommend checking out the "Changing Your Mindset" section of Lesson 0. It has been updated since I first joined Drawabox, and it goes into more detail on what I have shared from my personal testimony. I wish that I could've watched the video years ago before I started college.

I hope that my personal story resonates with you somehow and is able to help you through whatever it is that you may be going through. I'll be cheering you on!