i just don’t understand

i finally got a new girlfriend after so long of being broken and alone, i moved away from my parents after being kicked out and abandoned, now i actually have a roof over my head, i’m applying for the army and looking for work, i’m started to talk to people again despite my server anxiety but still besides all of these things i still feel like i’m the same. the same as i use to be like i’m empty and still have nothing iv been trying to understand why i feel this way but i cant seem to come up with a reason as to why i still feel so alone and useless.