Work weaknesses

I can say that I have a lot of weaknesses but they can also be my strong points.

I'm very harsh on my work, which can demotivate me really quickly. If I can't find inspiration I fall into a pit of depression. But that can help me also as I always put my emotions into my art pieces. I'm really bad at researching artists, I'm bad at relating someone's work to mine. I just feel like no one will have my full vision.I'm pretty bad at talking about my art, in a critical sense.

UPDATE: I've been trying to get better at sculpting. Recently I did two sculpture to exercise some anatomy and get better at it.