what I need to improove

Some things that I need to improove are my work ethic.  I sometimes don't do everything thar I should, or I will do it half way.  I'm pretty lazy at times but I don't think that I can do something stright without interupptions for long periods of time just because i don't have the concentration.  another thing that I need to work on is that I need to be a nicer person to people i care about. Sometimes I am rude for no reason at all just because I was having an off day.  I don't like it when people are rude to me so I think I really need to work on treating people better.  I have one best friend that I dont even treat that great, but then again she doesnt treat me that great either.  well Im going to try to make better grades this semester and to make more friends that I think will last.  I've been making A's and B's and last semester I got one C because I wasn't doing sowell in spanish.  I accually tried to transfer out of her class, but then I realized that the other teacher that i would have gotten was so much worse so I switched back.  I am going to take a collage course class next year it'll be chem 130 and im excited yet scared at the same time.  I really have to focus so that I pass the class otherwise I wont get the credits and I will have wasted a whole bunch of money.  Sometimes I wisht hat my parents didnt put so much pressure on me to do well.  I mean they think that a C is the end of the world for me but i try in class and they still put me down for it.  and they always compare me to my little sister who gets straight As all the time everytime.  But when I was in 5th grade i got the same grades as she did so I think its rediculous.