<human>: Can you give me a shortened version of the text?

I just started working with them in September. They've been working with each other for 2+ years. So of course they'll have more personal relationships. 

I think I'm a nice person. I never gossip with them though. Im a pretty shy person so sometimes I can come off awkward. I try to join in their conversations sometimes, crack a joke here and there. But they seem to drown me out or don't think my jokes are humorous. 

One of my coworkers told me today she was invited by two others to go to the beach. This coworker just got hired about 2 months ago and this really hurt my feelings. 

I can't seem to understand why it's difficult to get along well enough with them to get invites to do things outside of work. It seems they have to force themselves to talk to me. I feel like they make comments about what I say when I'm not listening. 

How can I make myself a little less awkward and not stress so much about my social skills?
<bot>: I can't seem to connect with my coworkers well. Just found out someone hired 2 months ago is already invited to do stuff outside of work and I haven't been included.  Need advice to be more socially confident.