New Swimmer - First Open Water Swim

I just kinda learned how to really swim this year and I'm having a blast with it. Monday, I decided to try to ease myself into swimming in open water within the somewhat friendly and safe confines of Aquatic Park (San Francisco). I was OK with the temp (about 50) after a few minutes but what really unnerved me was the total lack of visibility. I could see my hands but that was about it. It freaked me out a little so I just swam parallel to shore in about 6 feet of water. Is this just something that I will get used to??? I hope so. I also felt a little disoriented/dizzy when I got out... Any and all advice is greatly appreciated! ;)