What skillz does each level involve…like level 1-10 whats the basics for each level…
What it says in the level.
Did you mean “where are the skill levels?”
USA: http://www.unicycling.org/usa/levels/
IUF: http://www.unicycling.org/iuf/rulebook/iufrules/10levels.html
Yeah…I guess I’m probably skill level 3 or 4 although i can suicide mount jump mount and mount with the unicycle laying on its side
When it says turn 180 degrees sharply, or whatever it says, how sharp does it mean? Do you almost have to spin on the spot?
How large of a diameter can the circle you make have?
Until one passes the levels, you can only consider yourself “the equivalent of” whatever level. Part of the challenge in the levels is to get through all the necessary skills without the mistakes, with someone watching. 
For James Potter: “When it says turn 180 degrees sharply, or whatever it says, how sharp does it mean?” Please check the USA levels again:
http://www.unicycling.org/usa/levels/
The IUF levels have a lot less detail. The USA levels answer pretty much every question that’s ever been asked on rsu.