How can I let my parents know I'm not depressed?

All summer I haven’t went out with my friends not because I don’t have any, but because I don’t want to. Places are expensive, and I don’t want to bring them over to my house because my parents argue. I’ve confronted my parents about the issue, but they just say they don’t care and I shouldn’t be ashamed. I do play on my phone a lot and my room is dark because I close the curtains, but that’s because it’s super hot outside and bugs get in. I try going out with them to go eat or just running errands, but they still call me lazy and depressed. I trying really hard to prove to them that I’m not depressed, like I’m honestly happy I do text my friends and watch movies and everything, sometimes.. or maybe all the times I might not want to go out, but they need to understand that this is my vacation time and I don’t always want to be around my friends. They think it’s really simple to call someone up and ask if I can sleep over or hangout, but I’m a planning kind of person and whenever I do last minute stuff it never works out, so yeah how do I let my parents know that I’m not depressed? It’s really serious they want to send me to doctors and therapists. Thank you.