Oil Filter Bracket Clip

Hi Everyone,

I recently change my car oil and can't seem to get the oil filter out I just a breaker bar and still can't get it out. I saw that their is a bracket clip. My question s is do I have to unclip it before turning the oil filter? My second question is I bought a Toyota oil filter cap but it snap on when I try to loosen and now that aluminum cap is tick on the filter anyway to get it out. Would appreciate some feedback thanks a bunch. Don't buy the cheaper oil cap at the dealership they are crap. The one that's made out of aluminum and cost less.