Hi Ljj, I was wondering how old you are. Are you a teen? or young adult? I just guess that because your dad lectures you. I'm sorry that you are going through this, that your dad lectures you and that you feel insecure about some other baggage too. That does not sound like fun It sounds like maybe you feel powerless? Does that ring any bells? Or am i totally off? I'm sure it is frustrating.

I think it's a natural thing sometimes, to get jealous of other peoples accomplishments. I have felt this way before, especially when I am feeling sorry for myself or wishing I had what they accomplished!

I'm sorry you feel alienated and insecure. You asked how to cope with these problems and for advice. I can only give you my advice, and it will not look exactly the same as someone else's, but here's what I'd say: Everyone feels insecure from time to time, some though, more than others, and I don't think it's there result of just one thing, but a mixture of the way society is, biology, environment, upbringing. I'm not sure what it is you're feeling insecure about, but here are some things I've done to make myself feel less insecure about certain things: 1.) being around people who accept me as I am, 2.) therapy with a good therapist, 3.) journaling and being kind to myself. Writing things I like about myself, writing things I'm grateful for 4.) Sometimes I google questions. I'll google, for instance, "how to stop being / feeling alienated." It comes up with some helpful things. 5.) Doing things I enjoy and am good at, 6.) making goals for myself and taking steps to achieve them. It can be anything you want to accomplish.

That's all I've got right now.
Best of luck to you. I hope you feel better soon.