DearTiny,
IknowyouareannoyedandIamwillingtooffersomeadvice.
Asyouknow,afriendinneedisafriendindeed.Thoughyouquarrelledwithyourdeskmate,Idon'tthinkit'sgoodtogiveupyourfriendship.IfIwereyou,Iwouldhaveadeepconversationwithhim/hertodiscusswhatwasthematter,tryingtosolveitasfastaspossible.
Asforyourmath,Ithinkyouneedmorepractice.Wheneveryouhavetroubleinit,turntoyourclassmatesorteachers.
Wishingyouarehappy!
Yours,
Kate