Some authors have friends and a large support group. Others do not. Regardless, we have to work with what we have until we can do better. When i first started, I had about four friends and a very small budget. Now, I have developed fans and each one contributes to my success by their word of mouth and wonderful reviews, and sometimes their honest criticisms and critiques. It takes both, you know. It is the negative that forces us to come back to reality and keep working at our craft.
So, don't fear starting small. Work with what you have now and trust that as you stay committed, what you have will grow.