What about fame & wealth through DIY filmmaking & distribution? Usually, on DIY indie projects the filmmaker is also the distributor and can often be the sole worker engaged in getting the movie out to the audience. The bright side of this is that less money (less than for a Hollywood or Indiewood project) needs to be made in order for the project to be profitable. But due to lack of a large amount of capital to widely market & distribute the film within a 12 - 24 month period, the successful DIY films have a different time frame for the completion of the initial most significant distribution phase of the project.
Let's take a look at three DIY indie films: The Last Broadcast, The Debut, & Funny Ha Ha. Each film can be considered a success due to the following reasons: Lance Weiler's film The Last Broadcast reportedly has earned over 4 million dollars as of 2006, Gene Cajayon's The Debut reportedly grossed $1.8 million through 20 months of theatrical self-distribution (also is a project that spent 11 years between conception in 1992 and being available on DVD in 2003), and Funny Ha Ha made its director Andrew Bujalski relatively well known among film critics & festivals which most likely led to his second film Mutual Appreciation getting significant film festival and critical attention and receiving (I believe) comparatively wider theatrical self-distribution (Mutual is still being shown theatrically, and is currently available on DVD). Time frame wise all three projects worked outside of the 12 - 24 month Hollywood/Indiewood time frame identified at the top of this post, in order to achieve the successes mentioned above. The Last Broadcast was first made available to audiences in 1998. Both The Debut and Funny Ha Ha spent over 2-3 years each getting through festivals and theatrical self-distribution.
So what's the bottom line? Don't worry too much about how long it takes for you to make your DIY film famous (at least in the indie world) and for the film to earn a significant amount of money (let's say over $100,000). Do the work at your own pace, in an affordable & manageable fashion. If your film is good (receives a positive response from the target audience), as long as you continually work on distributing the film, it should eventually be seen by a large number of people and it should eventually earn a significant amount of money. There is no rush. Hollywood or Indiewod can't fire you because you did not achieve significant success in 12 - 24 months because you are a DIY filmmaker & you own your movie. You have the rest of your life to show & sell your movie because you are a DIY filmmaker and thus are able to operate outside of Hollywood time.