Grants for professional development are often available. University alumni, members of an ethnic community, residents of a town, city or even neighborhoods are able to take advantage of this free money. Just be sure to follow the rules to a T, since that is usually the secret to winning them!
A quick video of you singing your best arias, plus a little talk about your reasons for wanting to attend a summer program will go a long way. Using Go Fund Me is a great program to use. Because they are a 501c3, your friends and family who donate can write off their gifts to you. Learn more about the process here.
Plan a benefit concert and invite every person you know. Ask those you invite to do the same. Explain to them over and over during transition times why you need to do a summer program and what specific things it will do for you and how that will benefit the community. Then be sure to pass the hat! You can easily raise a few thousand dollars this way!
Lead a series of workshops!
Get all the parents in your community to sign their kids up for a series of weekend intensives. Make sure to charge what you are worth!