How to know what I truly want as opposed to what I'm used to

I suppose most of what I'm asking is in the title, but I'll give you some context. I'm pretty young, I'm just starting university this year straight out of high school. I've never been a massively social person and generally got on well with many people but never really made very strong connections. I moved schools a lot as a kid and there's a pretty big age gap between myself and my sibling, so I never really had any friends for longer than 3 or 4 years. This meant that I never felt like an important friend to anyone, always an extra friend, and this idea was supported by how I also tended to move friend groups frequently and never throw my lot in very much with any particular person or group. I've noticed now getting older that I'm tending towards an even more solitary lifestyle, by my high school graduation I didn't really have any friends as I had split with or drifted away from most of my friends over a period of about 2 years. I don't necessarily hate being alone, I've been introverted anyways as long as I can remember, but I'm definitely more alone now than I have been before in my life. And to me, it begs the question whether I truly want to be alone, or if I'm just used to living without serious connection. I have been wrong about what I want in the past. I'm wrong often when it comes to relationships, and more often when it comes to serious relationships. So my question to you, is how do you know that what you want is what you like, and not what you're used to? Thank you.

If you have to ask, then you don`t want. > Just keep on as you are doin the things you are doin. You will KNOW when you need to change the things that you do. It will come to you. You will get an urge that you must pursue ... If it`s not broken, don`t fix it Better to stay in your comfort-zone

If you must know; > simply remove it from your life - then you will know, if you really want it or it is just a habit