Summarize the following:
Volunteer to help create sets for your school or local theater company. This will give you your first taste of what it’s like to be part of a crew. Lend a hand with as many projects as you can to get more comfortable working under time and budget constraints.  You may not be able to actually design sets yourself on your first few productions. However, even tasks like painting backdrops or creating props will offer you a valuable glimpse into what goes into establishing a scene. If your interests lie in film and television, trying getting involved in the production of independent films being made in your area. Spend some time working in a related position as a propmaker’s assistant, carpenter, runner. There’s typically a lot of coordination between production designers and these other staffers, so pulling double duty can be a good way to pad your resume and  familiarize yourself with other aspects of the business. Working on set in another capacity is also a good way to ensure that you’re able to make a living, since set designer jobs can sometimes be scarce. Put together a collection of your best work. Your portfolio can include concept art in the form of sketches or computer-aided design printouts, along with photographs of finished work. A well-curated portfolio will act as a visual resume when you offer your services to big studio or theater productions.  Having a digital or online portfolio as well as physical samples will make it easier to get more eyes on your work.  Be sure to include any special titles or distinctions you’ve earned along the way, such as an art director credit for an independent film.

Summary:
Begin working on small productions. Take on other jobs and responsibilities. Build a portfolio.