Ansel Adams. Diane Arbus. Annie Liebowitz. Anne Geddes. Do you recognize these names? A lot of people (especially your age) may not. Well, these are as famous as they get. So if being the next Ansel Adams means as much to you as being the next Gary-the-fish-guy at Vons, we suggest you don't get into it for the fame.
However, if gaining the admiration and respect of other artists and those within the industry is enough for you, then have at it. If you're phenomenally talented and your work begins to receive recognition and acclaim, you may very well achieve some degree of renown. Then you too can be just as famous as the people listed above who most people on the street have never heard of.