Making the decision to be a musician full time is synonymous with deciding to be self employed. You have to realize that YOU represent your business and that YOU have the responsibility of marketing yourself. If you think someone else will take care of your business or that people are going to remember you just from one brief interaction then you should either quit or learn to be a better entrepreneur.
Persistance is key! Make an effort to understand others and keep pushing forward to create a momentum. Be someone that others want to engage and engage others along the way. Don't stop!