I feel I can't become interesting to people

So here are more issues and to be honest I'm tired of bothering the people I know by asking them if it's just in my head or not, so here you have a rant:

To give some context, I (23F) have lived for a big period of my time quite isolated, having interactions with people at school but having a bit of difficulties in integrating in female groups especially. I had I would say some female and male friends during high-school but I don't feel like I've ever felt connected with them and sometimes I feel like an outsider.

Now I am somehow part of a friend group of people from uni, but my issue is that I can't make myself be interesting for other people, people just start ask me questions when they remember about me as I'm staying a lot silent. When I'm trying to say something, it's either a joke that most people don't find funny or I'm getting nervous and it becomes hard to speak.

I also had many experiences during my life when I've got to some hangouts with people, but I didn't know how to speak to them and ended up just being there and hating every part of the hangout. This is why I tend to distance myself even if I crave so much interaction.

I know that I am capable of communicating, I have a boyfriend with whom it's easy to speak. But when I speak in group settings, or with other people, I feel like something happens to me and I'm forced to say the worst and cringiest phrases I could.

For some time I thought that people didn't like to talk to me because I wasn't attractive and pretty enough, and they (both females and males) didn't want to speak to someone who wasn't pretty. I tried losing weight but the awkwardness in me still persists.

Please, if you've somehow managed to get from this situation, please let me know. I want to go to a psychologist but I've already been to one and even if we've talked enough about why my parents are at fault for some stuff, I didn't feel like all my problems are caused by them and this approach didn't help me. Even if you thing from what I've said that I'm on the spectrum, feel free to tell me as I'm trying to start enjoying my life.