Yep - you can always combine or change majors. I started as a double theater/music major. Ended with a BS in liberal arts and a minor in music. It was too much for me to take on. But I did all the theater classes and was in the operas... you could always major in theater tech, too because that is very useful. The important thing is having the degree. The degree "means" more to our strange society (often - not always) and you can go further places once you have it. Ya know? hang in there, do the best you can.
I went running outta class one day, mad as all get out and crying - and the homeless guy walked past and said "Take it from me, stay in school". and kept walking. It took em 9 years to complege a 4 year degree - and now i am working on my Masters. you can do it!