WTF???!!! (sorry - can't believe what I read in your OP!!

)
You need to ride your bike to improve - I was exactly the same when I first passed - wobbled round every corner etc etc, wasn't til i got a few miles under my belt and took some advanced training ( I was particularly bad

) that I improved.
Also, who owns the bike? you or him? If it's yours then tell him to butt out!
get out there and ride - good luck