I feel like a failed teenager

I feel like a failed teenager. Most of my days are spent in my room, watching series for hours and hours with the same plot, or doom scrolling on TikTok. The only real human interaction I have is with my family, who I’m not super fond of all the time, or with my boyfriend. Now that I’m in upper secondary school, the loneliness feels stronger. All my friends chose different programs, and even though I’m happy for them, they’ve found new friends. They’re really nice, but in my class there are only a few girls, and I don’t really connect with them. They’re kind and everything, just not people I would spend my free time with. My boyfriend is in my class too, and I’ve become heavily dependent on him to not feel alone. Every time he hangs out with his friends, whether it’s in real life or online, I’m reminded that I don’t really have anyone. Maybe in a few weeks I’ll get my older brother’s computer so I can play games, meet people, and hopefully make more friends, but that hope clashes with the fact that I’m shy around new people. I also don’t drink alcohol or energy drinks. I don’t smoke. I don’t really do anything bad, yet I still feel like I’m doing something wrong

I use to have so many friends and a life outside my room, how do you even stop being boring?