i also keep worrying about getting better grades than my cla

i also keep worrying about getting better grades than my cla I better friends grades my have than do ,I know you are worrying about her,now.I am also worring abo I'd like to keep my grades a secret. i got better grades than i did last year 这句话对吗 jenny can get better grades than i because i don't stuy i always get better grades than he does,为啥要加does i plays better than my friend worrying about My life is getting better. “no one konws better than i konw more about i always get better grades than he does.这里的get是系动词还是实义动词?