New paintball gun what to do ?

HI there i am a 16 year old that just got in to paintball about 4 months ago.I bought a mr1 spyder paintball marker it was cheap so i got it just to make sure i did buy it then didn't like the sport but now I'm sure I love it! and I want to buy a nicer gun. my question is when i first get the gun do i haft to take it apart and clean it and lube it up because the first day i got the mr1 i didn't clean it or do anything and after a days play i took out the bolt and found that the bolt had deep scraches and that there were metal shavings in the marker plz help