Sad is not the word I’m looking for

Hi everyone, I am so depressed, broken and I don’t know what to do, we are a family of 5 but I feel lonely all the time, my parents live in another country so it is hard for me to communicate with them, I always give them what they need so we can have that connection, I have send them phones, connected their internet everything so we can have phone calls or video calls, and they don’t even try to contact me, I always call them and they always say, “we are busy, we can’t right now, how about tomorrow?” Those are few excuses that I can remember, and it breaks my heart because I feel alone here and I want to talk to them, but they always cut me off, what makes me sad and confused is that they are always online, my sister says she’s always talking to them, I don’t know what’s going on, they expect more for me but I don’t know what they want, I gave them everything.