Calm down mate,It’s not that much bad that you may thinking.
To be honest,are not you a little bit too over reaction with this.
You did pretty good,but yeah it may not good as you expected but I did say it’s still too far from being a failure.
You have some flaws to correct them.
1.Your topology is not quite good (Remember this Fair and square is the key),it seems like you have no idea how the correct is.
-You did better find some of professional works and see his topology.
*Artstation is a good place for finding professional and a good learning place too*
—There is some 3d model which you can view them through Sketchfab or Marmoset Viewer in there too, Hope this help you
2.Your scaling and proportion still not good enough.
-Have a look at your hand and take it as a prototype.
Don’t compare yourself with the other by just looking just a glance.
Actually you did better than myself at the first time a lot.
