It seems everytime I write a song it just seems so familiar? Sometimes I find that I am kinda ripping off a song others I just can't seem to think of a song it sounds like but somehow I always feel like I'm stealing something,

Have you ever wrote a catchy song and just said to yourself "this just sounds to good I must he ripping someone off"?
Jackson DK2
1962 Fender Esquire
PEAVEY 6505+ 112
This is extremely common bro. It happens a lot. Yes It's annoying. And yes you eventually sorta get over that.
Dude don't even fret about it, if it'svsomethin good and you feel that the work is yours, then it shouldn't be too bad a problem. If it really sounds like a clone of somebody elses song, add some personal flare to it
How do you make a signature? Is this a signature? Sig?.... Nature?..... Sigmund Freud?...... Nature Valley?.... Sigmund Fraud?..... Frankie Valli?.... ah, $!*@ it...