Well at this point in my life im 17 and my penis hasnt grown since i was a child and its a little above 5 inches when hard but is very skinny with no girth so that leaves me scared to get a girlfriend because i wont be able to satisfy her?

Penis stops developing after puberty What you are describing falls within the limits of normal. Be confident and not scared size of penis is a minor factor in satisfying a partner. Go for it. You will be fine.

There are so many other ways to sexually satisfy a woman other than what results from size/girth of a penis. Learn more about female exogenous zones, then use other modalities to stimulate those areas (use mouth, hands, toys). Men put all too much of their identity on size, but in my experience , most women don't. There are many, many ways to please a partner!