I'm an aspiring artist myself, and here are some of my tips.
- Don't focus on drawing one thing. I did this, and now I can only draw canines at a decent level. I regret it every time I try to draw something new, so try to draw new things every day, even still life, even animals, even humans. Do a study where you look at photos and trace (yes, I did just say trace) them. It will help you learn proportions and anatomy. Then look at photo references for your art when you can.
- Don't use pure black or white for shading. Nothing in nature is ever pure black or white, so add hues of blue, green, red, etc in your shading. Also establish a light source before you start, it'll make it easier to shade.
- Don't try to develop a style from the get go. Try to go for realism. That was another mistake I made, and I regret it too. Make your figures as realistic as possible and the style will come after.
- Practice on paper first. Trust me, its easier. I do all my sketches on paper still.

That's about all I can offer. I really look forward to seeing your art progress! 

Thank you for you helpful advice I start working on these right away.

So I have try which one of you have said and that is to put up a sketch on how I draw my female bodies. Note I only learn this way basic on a tutorial years ago for guidelines when starting to draw. Unfortunately I still do not know how to draw without them I will put one for guys soon not yet. This is just a basic stand pose so hopefully you can tell what I do wrong when I start to sketch. . Also I have draw still life before but the only reason I do not often do it is because I'm not really train to do in other words basically I'm not interested in drawing still life which I know it bad. I guess I should do often but I don't.
Edit after looking at the Will Ternell video I did what he said. Overall it was pretty fun video so I drew the one of things I'm having trouble with and what you havent seen for me yet kittens. Look at tons of kitten images and drew them. Most of them are pretty bad but I guess that how it starts will probably draw more tomorrow.

This redesign of my oc Genevena. Made her hair and outfit more realistic. The original hair was a pain to draw. Made her clothes more basic on the actually clothing there basic on. As you can see i'm starting to use references more.

Yeah so after listening to the moderator and someone. I did drew those boxes and some still life which got me back in the mood. So I drew some fan art the character is from Final Fantasy Crystal Chronicles: Echoes Of Time. The pose came from posemanaics.

So guys can anyone tell me how to get rid of an artblock have no motivation to draw at all.