[quote=@Silver Carrot]
I can do to decent paragraphs minimum consistently, sure! A lot of casual section dwellers like me just see posts of like 1000+ words and just go 'nnnnope! I'm not and never will be that good!'
[/quote]

If you can do four to five well-written paragraphs that contribute and/or advance either your character plot or the setting of the RP, then you've nothing to be concerned about. Internal thoughts and character reflections are excellent ways to do so. 

EDIT: [quote=@Silver Carrot]
EDIT: Perfect knowledge of spelling and grammar but I get betrayed by clumsy fingers a lot >.>
[/quote]

Just go through your post once you've completely written it once or twice, reading it out loud as you do, to ensure there are minimal errors and it reads well. If you do that, then no clumsy fingers can fell you.