Super tiny Autoflower White Widow

[Cluttershy]

Hello everybody.
So this being my first grow it feels extra shitty to fail so tremendously. Either that or my first ever planted seed is a runt. Neither option makes me feel better.

Anyway, my plant is currently at day 40 from the moment it was planted in the soil, and it is in an 8.5L pot. Initially I was growing it under CFL lights but decided to make a long term investment and got myself a 150W HPS.
I'm not looking for opinions on where I went wrong. Not in a "I don't need anybody telling me what to do" kind of way, I just know where I could've done better.

However, my question is:
How much can I expect to harvest from this little one, and does it look like she's healthy and doing well generally?
Thanks in advance to anyone who gives a fuck enough to comment

Also for some reason inserted images are magnified to hell, so here are links.

 

[XobeMan]

It looks healthy enough and if grown right under a 150w HPS in reality terms.. maybe 20g and in supeior terms grown in optimal environment and good nutes and so forth... maybe 1 oz.

She will grow slow cause of its under a 150w bulb but she will get there soone or later.